Science & Research

Experiments, theories, and the building blocks of the physical world.

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Some words in this topic are A2–C2 — part of Pro. A1 words are always free.

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C2 (308) Pro

/ˈɡɛl.ək.si/ a vast gravitationally bound system of stars, gas, dust, dark matter, and other astronomical objects M S

/ˈaɪvi/ Any of several woody, climbing, or trailing evergreen plants of the genus Hedera. M S

/ˈkɔɹ.ə.nɚ/ A public official who presides over an inquest into unnatural deaths, and who may have (or historically had) additional powers such as investigating cases of treasure trove. M S

/ˈmjuː.tənt/ an organism, cell, gene, or other biological entity that carries a mutation M S

/ˈæst(ə)ɹɔɪd/ a natural rocky or metallic body smaller than a planet that orbits a star, especially one orbiting the Sun M S

/kɹeɪt/ to put into a crate M S

/ˌɹeɪdioʊˈæktɪv/ exhibiting or caused by radioactivity M S

/ˈsʌkʃən/ the process or force by which reduced pressure draws in a fluid or makes surfaces adhere M S

/ˈmɑːr.ʃən/ of or relating to the planet Mars or its actual or imagined inhabitants M S

/ˈju.nɪ.kɔɹn/ A mythical horse, widely believed to exist until the 17th century, with a single, straight, spiraled horn projecting from its forehead. M S

[haɪˈpʰɑθəsɪs] An idea put forward to explain something, which can then be tested. M S

/ˈwɑtəɹˌmɛlən/ An environmentalist with socialist leanings, an ecosocialist. M S

gravitational C2

/ˌɡɹævɪˈteɪʃənəl/ Relating to or caused by gravity. M S

/ˌɪnfɹəˈɹɛd/ using or relating to electromagnetic wavelengths longer than visible red light but shorter than microwaves M S

/ˈzoʊ.di.æk/ the belt of the sky centered on the ecliptic through which the sun, moon, and visible planets appear to move M S

/ˈnebjələ/ an interstellar cloud of gas and dust, often associated with the formation or death of stars M S

/ɛlk/ large northern deer with enormous flattened antlers in the male M S

/kəˈmi.li.ən/ A small to mid-size reptile, of the family Chamaeleonidae, and one of the best known lizard families able to change color and project its long tongue. M S

/niˈændərˌtɑːl/ a member of an extinct human species, Homo neanderthalensis, that lived in Europe and western Asia until about 40,000 years ago M S

/ɪˈveɪʒən/ nonperformance of something distasteful, as by deceit or trickery, that you are supposed to do M S

inconclusive C2

/ˌɪnkənˈklusɪv/ Not conclusive, not leading to a conclusion. M S

/ælˈbaɪnoʊ/ born with albinism and therefore having little or no melanin pigmentation M S

/ˈstɑrˌdʌst/ fine particles of matter originating in stars or present in interstellar space M S

/dʒəˈræsɪk/ relating to the second period of the Mesozoic Era, approximately 201 to 145 million years ago M S

/bɹeɪ/ to laugh loudly and harshly M S

/ˈskaɪˌlaɪt/ a window in a roof to admit daylight M S

/ˈhiːlɪks/ a three-dimensional curve that winds around an axis at a constant slope, as in a screw or spiral staircase M S

/ˈstɪɡmə/ a mark of shame or social disapproval M S

/ˈfoʊnəˌɡɹæf/ A record player. M S

/flɔːˈɹɛs.ənt/ emitting visible or other electromagnetic radiation while excited by absorbed radiation or energetic particles, with the emission usually ending almost at once when excitation stops M S

/ˈlɛɹ.ɪŋks/ A hollow muscular organ of the neck of mammals situated just below where the tract of the pharynx splits into the trachea and the oesophagus. It is involved in breath control and protection of the trachea, and, as it houses the vocal cords, sound production. M S

/ˈkrɔːsˌoʊ.vɚ/ a crossing or transition from one place, group, activity, or system to another M S

/ɪˈlɪp.tɪ.kəl/ In a shape of, or reminding of, an ellipse; oval. M S

/ˈpɛɹ.ə.fɪn/ A petroleum-based thin and colourless fuel oil. M S

/kɑːzˈmɑː.lə.dʒi/ the scientific study of the origin, structure, development, and possible fate of the universe M S

/tʌf/ rock formed from compacted or cemented volcanic ash and other fine volcanic fragments M S

/æ.nəˈtɑ.mɪ.kəl/ of or relating to the structure of the body M S

/ˈʃɪŋgəl/ cover with shingles M S

transcendental C2

/ˌtɹænˌ(t)sɛnˈdɛntl̩/ existing outside of or not in accordance with nature M S

spectrometer C2

/spekˈtrɑː.mə.t̬ɚ/ an instrument that separates radiation, particles, or signals into a spectrum and measures their intensity or abundance by wavelength, frequency, energy, or mass-to-charge ratio M S

/ˌlɛvɪˈteɪʃən/ the phenomenon of a person or thing rising into the air by apparently supernatural means M S

fertilization C2

/ˌfɝːtəlɪˈzeɪʃən/ the union of male and female gametes to begin the development of a new organism M S

/dʒəˈnɛtɪsɪst/ a scientist who specializes in genes, heredity, and genetic variation M S

/əˈmiː.bə/ a single-celled organism that changes shape and moves or feeds by extending pseudopodia M S

/sɪmbaɪˈoʊsɪs/ The occurrence of two different or opposing things in the same time and place. M S

/ˈnaɪ.trɪk/ relating to nitrogen, especially nitrogen in a relatively high oxidation state M S

/ˈfɪl.ə.mənt/ a very thin thread or fiber of natural or manufactured material M S

thermodynamics C2

/ˌθɜː(ɹ)moʊdaɪˈnæmɪks/ The science of the conversions between heat and other forms of energy. M S

/ˈfɔrsəbəl/ impelled by physical force especially against resistance M S

/ˈɡræv.ɪˌtɑːn/ a hypothetical massless spin-2 boson that would be the quantum carrier of gravity in a quantum theory of the gravitational field M S

/djuːˈtɪɹi.əm/ An isotope of hydrogen with one proton and one neutron in each atom - 21H. M S

/ˈtɪndʒ/ color lightly M S

electromagnetism C2

/ɪˌlɛk.tɹoʊˈmæɡ.nəˌtɪzm̩/ magnetism produced by an electric current M S

/bəˈsɔlt/ the commonest type of solidified lava M S

/ˈkweɪ.zɑɹ/ an extremely luminous active galactic nucleus powered by matter falling into a supermassive black hole M S

electrostatic C2

/ɪˌlek.troʊˈstæt.ɪk/ relating to stationary electric charges, the fields and forces they produce, or devices that use those forces M S

ornithologist C2

/ˌɔɹnɪˈθɑləd͡ʒɪst/ a scientist who studies birds M S

/ˌsɛd.əˈmɛn.tə.ɹi/ resembling or containing or formed by the accumulation of sediment M S

/bəˈsɪləs/ any rod-shaped bacterium M S

paleontology C2

/ˌpeɪliənˈtɑːlədʒi/ the scientific study of prehistoric life through fossils and other remains preserved in rocks M S

/ˌvɛɹ.əˈfaɪ.ə.bəl/ capable of being tested, verified or falsified, by experiment or observation M S

/ˈlæktɪk/ relating to, derived from, or occurring in milk M S

/ˈskɛp.tɪk/ someone who habitually doubts accepted beliefs M S

/ˌentəˈmɑːlədʒi/ the scientific study of insects, including their classification, anatomy, behavior, ecology, and relationships with humans M S

electrolysis C2

/ˌɛˌlɛkˈtrɑːləsɪs/ The chemical change produced by passing an electric current through a conducting solution or a molten salt. M S

/ˌvɪvɪˈsɛkʃən/ surgical cutting into, or other invasive experimentation on, a living animal or organism for scientific research M S

/ˈviː.hə.mənt/ marked by extreme intensity of emotions or convictions M S

/fəˈnɛt.ɪk/ of or relating to the scientific study of speech sounds M S

/ˌkɹoʊməˈsoʊməl/ relating to, carried on, or caused by chromosomes M S

/ˈprʌs.ɪk/ dated in chemistry: relating to hydrogen cyanide or hydrocyanic acid, especially in the term prussic acid M S

gravitationally C2

/ˌgrævəˈteɪʃnəli/ In a way relating to or caused by gravity. M S

/ɪˈlɪp.tɪk/ characterized by extreme economy of expression or omission of superfluous elements M S

/ˌhaɪ.pɚˈbɔl.ɪk/ enlarged beyond truth or reasonableness M S

/maɪˈtoʊ.sɪs/ cell-nuclear division in which duplicated chromosomes separate into two genetically equivalent nuclei M S

/ˌɔɹnɪˈθɑlədʒi/ the branch of zoology concerned with the scientific study of birds M S

/ˈɛk.stənt/ Still existing; not lost or destroyed. M S

/ˌluː.məˈnɑː.sə.ti/ the quality or degree of giving off or reflecting light; brightness M S

/ˈɪɡniəs/ geology: formed when molten magma or lava cools and solidifies M S

/əˈnætəmɪst/ One who studies, teaches, writes on, or does research on anatomy and anatomical structures. M S

/ˈpɑ.zɪ.tɹɑn/ an elementary particle with positive charge M S

/ælˈkɛmɪkəl/ relating to alchemy, an early tradition concerned with transforming matter M S

/ˈlev.ən/ A substance, such as yeast, added to dough to make it rise. M S

/ˈtraɪloʊˌbaɪt/ an extinct Paleozoic marine arthropod with a segmented exoskeleton divided lengthwise into three lobes M S

falsification C2

/ˌfɔlsəfɪˈkeɪʃən/ the showing or proving that a claim, hypothesis, or statement is false M S

/ˈfɑksˌfaɪər/ the faint glow produced by bioluminescent fungi growing on decaying wood M S

/ˈkɑːstəl/ anatomy: relating to a rib or the ribs M S

/sɪˈlʊɹiən/ relating to the geological period between the Ordovician and Devonian, about 444 to 419 million years ago M S

/ˈplaɪ.stə.siːn/ the geological epoch from about 2.58 million to 11,700 years ago, preceding the Holocene M S

/ˈproʊtəˌplæzəm/ the living contents of a cell, including its cytoplasm and nucleus M S

/ˈsaɪ.kləˌtrɑːn/ a circular particle accelerator in which a magnetic field bends charged particles into an expanding spiral and an alternating electric field accelerates them whenever they cross the gap between electrodes M S

spectroscope C2

/ˈspɛktɹəˌskoʊp/ an instrument that disperses electromagnetic radiation into its component wavelengths so that the resulting spectrum can be viewed or examined, especially in visible light M S

parthenogenesis C2

/ˌpɑːrθənoʊˈdʒenəsɪs/ reproduction in which an embryo develops from an unfertilized egg M S

photoelectric C2

/ˌfoʊtoʊɪˈlɛktrɪk/ of or pertaining to photoelectricity M S

fluorescence C2

/flʊˈɹɛsəns/ The emission of light (or other electromagnetic radiation) by a material when stimulated by the absorption of radiation or of a subatomic particle. M S

/ɑrˈtiːʒən/ of groundwater that is confined under pressure and can rise in a well above the level at which it is first reached M S

hybridization C2

/ˌhaɪbrədəˈzeɪʃən/ the crossing of genetically different organisms, varieties, or species to produce hybrids M S

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