Definitions for di-

This page provides all possible meanings and translations of the word di-

Random House Webster's College Dictionary


  1. drill instructor.


  1. didymium.

    Category: Chemistry

* Chem. Symbol..


  1. a combining form meaning “two,”“double”: diamide; dicotyledon; dihedron.

    Category: Affix

    Ref: Compare dis-2. 3 2

Origin of di-:

< Gk, comb. form repr. dís twice, double, akin to dýotwo . Cf. bi -1, twi -


  1. digest; divide.

    Category: Affix

    Ref: var. of dis-1 3 1 before b, d, l, m, n, r, s, v, and sometimes g and j:


  1. diorama.

    Category: Affix

    Ref: var. of dia- 1 before a vowel:


  1. diameter.

    Category: Math

Webster Dictionary

  1. Di-

    a prefix, signifying twofold, double, twice

  2. Di-

    denoting two atoms, radicals, groups, or equivalents, as the case may be. See Bi-, 2

  3. Di-

    a prefix denoting through; also, between, apart, asunder, across. Before a vowel dia-becomes di-; as, diactinic; dielectric, etc

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