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racemic
ra·ce·mic R0004700 (rā-sē′mĭk, -sĕm′ĭk, rə-)adj. Of or relating to a chemical mixture that contains equal quantities of dextrorotatory and levorotatory forms of a compound and therefore does not rotate the plane of incident polarized light.racemic (rəˈsiːmɪk; -ˈsɛm-) or racemoidadj (Chemistry) chem of, concerned with, or being a mixture of equal amounts of enantiomers and consequently having no optical activity[C19: from raceme (as in racemic acid) + -ic] racemism nra•ce•mic (reɪˈsi mɪk, -ˈsɛm ɪk, rə-)
adj. noting or pertaining to any of various organic compounds that are optically inactive but separable into dextrorotatory and levorotatory forms. [1890–95] Translations
EncyclopediaSeeracemateracemic
racemic [ra-se´mik] optically inactive, being composed of equal amounts of dextrorotatory and levorotatory isomers.ra·ce·mic (r), (rā-sē'mik, -sem'ik), Denoting a mixture of optically active compounds that is itself optically inactive, being composed of an equal number of dextro- and levorotatory substances, which are separable. Those compounds chracterized by two or more chiral centers and internal compensation (for example, an internal line of symmetry), and are therefore not separable into d or l (or + and -) forms, receive the prefix meso-) (for example, meso-cystine).ra·ce·mic (rā-sē'mik) Denoting a mixture of optically active compounds that is itself optically inactive, being composed of an equal number of dextrorotatory and levorotatory substances, which are separable. ra·ce·mic (rā-sē'mik) Denoting mixture of compounds that is itself optically inactive, being composed of an equal number of dextrorotatory and levorotatory substances. |