di- — two, double (affix)
di-
two, double
Component
prefix
Greek · Greek 'two', common in chemistry (dioxide, dilemma).
Used in (3)
dilemma
B2
/dɑeˈlemə/
A difficult situation in which you must choose between two options that both seem bad.
dioxide
B1
/daɪˈɑksaɪd/
A chemical compound that has two oxygen atoms in each molecule.
dichotomy
C2
/daɪˈkɑtəmi/
The division of a class into two disjoint subclasses that are together comprehensive, as the division of human into female and male.