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adj. Of or relating to a chemical compound that contains equal quantities of dextrorotatory and levorotatory forms and therefore does not rotate the plane of incident polarized light.

adj. containing equal amounts of dextrorotatory (D) and levorotatory (L) stereoisomers and therefore not being optically active; typically, will be synthetic rather than natural

adj. Pertaining to, or designating, an acid found in many kinds of grapes. It is also obtained from tartaric acid, with which it is isomeric, and from sugar, gum, etc., by oxidation. It is a sour white crystalline substance, consisting of a combination of dextrorotatory and levorotatory tartaric acids.

Pertaining or relating to grapes in clusters, or to racemes.

In chem., composed of two optically opposite isomeres. The typical case is that of racemic acid (see below), but racemic forms are of frequent occurrence among organic compounds. The racemic form does not act on polarized light.

"Rebecca arrives in less than a minute and asks the nurses to get a racemic epinephrine neb."

racemic compound    racemic acid   

methane/air    meteor-free    fizzing    rummiest    delicious-smelling    oil­water    palynomorph    nitrating    multicomponent    gloppy