DI Definition

abbreviation
Diagnostic imaging.
American Heritage Medicine
Diameter.
Webster's New World
Donor insemination.
American Heritage Medicine
Drill instructor.
Webster's New World
prefix
Two; twice; double.
Dichromatic.
American Heritage
Containing two atoms, radicals, or groups.
Dichloride.
American Heritage
symbol
Didymium.
Webster's New World
affix
Twice, double, twofold.
Dichroism, dicotyledon.
Webster's New World
Having two atoms, molecules, radicals, etc.
Diacid.
Webster's New World
Webster's New World
Webster's New World
noun
Plural form of deus.
Wiktionary

Other Word Forms of DI

Noun

Singular:
DI
Plural:
dis

Origin of DI

  • Gr di- < dis-, twice < IE *dwis (> L bis, MHG zwis) < base *dwo, two

    From Webster's New World College Dictionary, 5th Edition

  • Greek dwo- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition