| | Definition: | | \Di-\ [Gr. di`s- twice; akin to ? two, L. bis twice. See
{Two}, and cf. {Bi-}, {Dia-}. The L. pref. dis- sometimes
assumes the form di-. See {Dis-}.]
A prefix, signifying twofold, double, twice; (Chem.) denoting
two atoms, radicals, groups, or equivalents, as the case may
be. See {Bi-}, 2.
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