di-
- twice, double, twofold: dichroism, dicotyledon
- Chem. having two atoms, molecules, radicals, etc.: diacid
dis-: used before
b,
d,
g,
l,
m,
n,
r, or
v
See di- in American Heritage Dictionary 4
prefix- Two; twice; double: dichromatic.
- Containing two atoms, radicals, or groups: dichloride.
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