<prefix>

1. A combining form or prefix, signifying twofold, double, twice.

2. It can also mean through; between, apart, asunder, across.

Before a vowel dia- becomes di-; as, diactinic; dielectric, etc.

3. A form of dis- occurring before l, m, n, r, s (followed by a consonant), v, usu. g, and sometimes j.

The Latin prefix dis- sometimes assumes the form di-.

See: dis-.

Compare: bi-, dia-.

Origin: Gr. dis- twice; akin to two, L. bis twice.

(05 Feb 2009)

Dhrystone, DHSD, DHTML, d-hydroxylysine < Prev | Next > di-, di(2-chloroethyl)sulfide, dia-

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<prefix>

<chemistry> A combining form or prefix meaning twofold, double, twice; denoting two atoms, radicals, groups, or equivalents, as the case may be.

(29 Oct 1998)

DHSD, DHTML, d-hydroxylysine, di- < Prev | Next > di(2-chloroethyl)sulfide, dia-, diabase

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