Word Formation & Derivatives
Prefixes, suffixes, compounds, inflections, and derived word families.
11746 words
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Some words in this topic are A2–C2 — part of Pro. A1 words are always free.
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multiplexer
C2
/ˈmʌltəˌplɛksər/
an electronic device that selects one of several input signals to send to a single output
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perspicaciously
C2
/ˌpɜːrspɪˈkeɪʃəsli/
in a manner showing keen mental perception and understanding
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physiognomy
C2
/ˌfɪziˈɑːɡnəmi/
a person's facial features or expression, especially when regarded as indicative of character
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platonist
C2
/ˈpleɪtənɪst/
a follower or adherent of Plato's philosophy, emphasizing ideal forms and abstract concepts
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quaffable
C2
/ˈkwɑfəbəl/
easy and pleasant to drink, often referring to wine or other beverages
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quixotically
C2
/kwɪkˈsɑtɪkli/
in a manner that is exceedingly idealistic or unrealistic, often without regard for practicality
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reticulate
C2
/rəˈtɪkjəlɪt/
forming or resembling a network; having a net-like structure
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sanctimony
C2
/ˈsæŋk.tɪ.moʊ.ni/
the act of pretending to be morally superior to others; affected or hypocritical holiness
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sclerotic
C2
/skləˈɹɑtɪk/
relating to or affected by sclerosis, a condition characterized by hardening of tissue
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sycophancy
C2
/ˈsɪkəfənsi/
excessive flattery, servile compliance, or obsequious behavior intended to gain favor or advantage from someone in power
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tawdriness
C2
/ˈtɔːdrinəs/
the quality of being showy but cheap and of poor quality
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underpeopled
C2
Short of people; underpopulated.
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coleopterous
C2
Of or pertaining to beetles of the order Coleoptera.
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intercrossing
C2
The interbreeding of two strains that have a common ancestry
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classificatory
C2
relating to or involving classification:'classificatory criteria'
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aestivation
C2
/ˌiːstɪˈveɪʃən/
(botany) the arrangement of sepals and petals in a flower bud before it opens
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insuperably
C2
to an insuperable degree
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clangorous
C2
having a loud resonant metallic sound
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exiguity
C2
/ɛɡziˈɡjuiti/
the quality of being meager
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illiberality
C2
An illiberal word or action
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light-wave
C2
/ˈlaɪtˌweɪv/
a wave of electromagnetic radiation considered as light
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light-ray
C2
/ˈlaɪtˌreɪ/
a line or narrow beam representing the path along which light travels
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light-quantum
C2
/ˈlaɪtˌkwɑntəm/
a quantum of light; a photon
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spatiotemporal
C2
/ˌspeɪʃioʊˈtɛmpərəl/
relating to both space and time
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tactual
C2
/ˈtæktʃuəl/
relating to the sense of touch
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metaphysic
C2
/ˌmɛtəˈfɪzɪk/
a system or branch of metaphysical thought
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mnemic
C2
/ˈniːmɪk/
relating to memory or the persistence of memory traces
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non-Euclidean
C2
/ˌnɑn juˈklɪdiən/
not based on Euclidean geometry, especially geometry in which Euclid's parallel postulate does not hold
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reversibility
C2
/rɪˌvɜrsəˈbɪləti/
the quality of being able to be reversed
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world-line
C2
/ˈwɜrldˌlaɪn/
the path of an object through spacetime
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stridulation
C2
/ˌstrɪdʒəˈleɪʃən/
the production of a shrill sound by rubbing body parts together, especially in insects
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nidification
C2
/ˌnɪdəfəˈkeɪʃən/
nest-building by birds or other animals
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anthropomorphous
C2
/ˌænθrəpəˈmɔrfəs/
having human form or humanlike characteristics
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commutative
C2
/kəˈmjutətɪv/
having the property that changing the order of operands does not change the result
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collinearity
C2
/kəˌlɪniˈærəti/
the condition of lying on the same straight line
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undulatory
C2
/ˈʌndʒələˌtɔri/
moving in waves or relating to wave motion
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behavioristic
C2
/bɪˌheɪvjəˈrɪstɪk/
relating to behaviorism or the study of observable behavior
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joint-stock
C2
/ˈdʒɔɪntˌstɑk/
owned by shareholders who hold stock jointly in a company
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inconveniency
C2
/ˌɪnkənˈvinjənsi/
inconvenience; the quality or fact of causing difficulty or trouble
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well-ordered
C2
/ˌwɛlˈɔrdərd/
arranged according to a clear order; in mathematics, ordered so every nonempty subset has a first element
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four-dimensional
C2
/ˌfɔr dəˈmɛnʃənəl/
having or involving four dimensions, especially three spatial dimensions plus time
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self-evidence
C2
/ˌsɛlfˈɛvɪdəns/
the quality of being evident without proof
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first-order
C2
/ˌfɜrstˈɔrdər/
belonging to the first level, degree, or order; in logic, quantifying over individuals rather than predicates
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second-order
C2
/ˌsɛkəndˈɔrdər/
belonging to the second level or order; in logic, quantifying over predicates or sets
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three-term
C2
/ˈθriˌtɜrm/
involving three terms or elements
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self-regarding
C2
/ˌsɛlf rɪˈɡɑrdɪŋ/
chiefly concerned with oneself or with actions affecting oneself
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phenomenalist
C2
/fəˈnɑmənəlɪst/
a philosopher who treats physical objects as constructions from possible or actual experiences
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object-matter
C2
/ˈɑbdʒɛktˌmætər/
the object or material under consideration in an inquiry
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space-relation
C2
/ˈspeɪs rɪˌleɪʃən/
a spatial relation between things
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stratify
C2
/ˈstrætəfaɪ/
to form, arrange, or deposit something in distinct layers
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systematist
C2
/ˈsɪstəmətɪst/
a biologist who studies systematics and classifies organisms by their relationships
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congener
C2
/ˈkɒnd͡ʒɪnə/
a person or thing of the same kind or class as another
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indistinguishability
C2
/ˌɪndɪˌstɪŋɡwɪʃəˈbɪləti/
the quality or state of being impossible to distinguish from something else
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timocracy
C2
/tɪˈmɑkrəsi/
in Plato's political theory, a form of government ruled by people motivated chiefly by honor and military glory
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atomism
C2
/ˈætəmɪzəm/
the doctrine that matter or reality is composed of discrete, ultimately indivisible units
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inexplicability
C2
/ˌɪn.ɪkˌsplɪ.kəˈbɪl.ə.ti/
the quality or state of being impossible or very difficult to explain
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quasiperiodic
C2
/ˌkwɑː.zaɪˌpɪr.iˈɑː.dɪk/
physics and mathematics: combining two or more incommensurate periods, so that a pattern recurs without repeating after one fixed interval
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inferability
C2
/ɪnˌfɝː.əˈbɪl.ə.ti/
the quality of being capable of being inferred or deduced from available evidence
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metrizable
C2
/ˈmɛt.raɪ.zə.bəl/
topology: having a metric that induces the space's given topology
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quasipermanent
C2
/ˌkwɑː.zaɪˈpɝː.mə.nənt/
lasting or remaining stable for so long that it appears permanent, although it is not truly permanent
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vitalist
C2
/ˈvaɪtəlɪst/
an adherent of vitalism, the doctrine that life cannot be explained entirely by physical and chemical processes
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atomist
C2
/ˈætəmɪst/
an adherent of atomism, especially the doctrine that matter or reality consists of indivisible elementary particles
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maltster
C2
/ˈmɔːl(t)stər/
a person or business that makes malt from grain, especially barley
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unpitied
C2
/ʌnˈpɪt.id/
receiving no pity, sympathy, or compassionate concern
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blackguardism
C2
/ˈblæɡɑːrdɪzəm/
dishonorable, abusive, or scurrilous conduct characteristic of a blackguard
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decolorize
C2
/ˌdiːˈkʌləˌraɪz/
to remove or destroy the color in a substance, material, or sample
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cryptogamic
C2
/ˌkrɪptəˈɡæmɪk/
relating to cryptogams, the formerly grouped plants and plant-like organisms that reproduce by spores rather than flowers or seeds
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foliaceous
C2
/ˌfoʊ.liˈeɪ.ʃəs/
resembling a leaf or composed of leaflike parts
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vivisector
C2
/ˈvɪvəˌsɛktər/
a person who performs vivisection or experiments involving operations on living animals
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consentaneous
C2
/ˌkɑːn.sənˈteɪ.ni.əs/
in agreement or harmony with something; consistent or suitable
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fructification
C2
/ˌfrʌk.tɪ.fɪˈkeɪ.ʃən/
the process of bearing or producing fruit
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lucubration
C2
/ˌluː.kjəˈbreɪ.ʃən/
intensive, prolonged, or laborious study or thought, historically especially work done late at night
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parochialism
C2
/pəˈroʊ.ki.ə.lɪ.zəm/
a narrow outlook limited to local concerns or one's own group, with little interest in wider issues or perspectives
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polyandrist
C2
/ˌpɑliˈændrɪst/
a person who practices polyandry; in its marital sense, a woman who has more than one husband at the same time
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scytheman
C2
/ˈsaɪðmən/
a person who cuts grass or grain with a scythe; a mower
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expurgation
C2
/ˌek.spɚˈɡeɪ.ʃən/
the removal of material considered offensive, objectionable, or unsuitable from a text or other work
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visiplate
C2
/ˈvɪz.iˌpleɪt/
in science fiction, an electronic screen capable of displaying images or data
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incongenial
C2
/ˌɪn.kənˈdʒiː.ni.əl/
unpleasant or unsuited to a person's character, tastes, or abilities
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eugenist
C2
/juːˈdʒen.ɪst/
historical: an advocate or practitioner of eugenics, the discredited program of attempting to control human reproduction according to supposed hereditary quality
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algebraical
C2
/ˌældʒɪˈbreɪɪkəl/
relating to algebra or carried out by algebraic methods; a now less common variant of algebraic
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unaccelerated
C2
/ˌʌnəkˈsɛləreɪtɪd/
having zero acceleration in a specified inertial frame; remaining at rest or moving with an unchanging velocity vector
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incommensurability
C2
/ˌɪŋkəˌmɛnʃɚəˈbɪləti/
the absence of a common standard by which two things can be measured, compared, or evaluated
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unintermitted
C2
/ˌʌn.ɪn.tɚˈmɪt.ɪd/
continuing without interruption or pause; ceaseless
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arpent
C2
/ˈɑːr.pənt/
historical: any of several French units of land area, varying by place and still encountered in records from Quebec and Louisiana
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nonscience
C2
/ˌnɑːnˈsaɪəns/
a subject, practice, or body of claims that is not science or does not use scientific methods
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stellarator
C2
/ˈstel.əˌreɪ.tɚ/
a device that confines hot plasma for nuclear-fusion research using a twisted arrangement of external magnetic coils
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reinvasion
C2
/ˌriːɪnˈveɪʒən/
a renewed or subsequent invasion
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slumbrous
C2
/ˈslʌmbrəs/
drowsy, sleepy, or suggestive of sleep
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nondevelopment
C2
/ˌnɑndɪˈvɛləpmənt/
the absence or failure of expected growth, formation, or development
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polyploidy
C2
/ˈpɑliˌplɔɪdi/
the condition or process of having more than two complete sets of chromosomes in a cell or organism
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radiational
C2
/ˌreɪdiˈeɪʃənəl/
relating to, involving, or caused by radiation
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infecundity
C2
/ˌɪnfɪˈkʌndəti/
inability or reduced ability to reproduce; lack of fertility
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colligation
C2
/ˌkɑː.ləˈɡeɪ.ʃən/
the act of binding, joining, or connecting things together
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untechnical
C2
/ˌʌnˈtɛknɪkəl/
not using specialist terminology or requiring technical knowledge
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berkeleian
C2
/bɑrˈkliən/
relating to George Berkeley or to his philosophy of subjective idealism
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correspondency
C2
/ˌkɔrəˈspɑndənsi/
correspondence, agreement, or mutual relation, especially diplomatic relations between states
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