reciprocal

reciprocal /re·cip·ro·cal/ (re-sip´ro-k'l?)

1. being equivalent or complementary.

2. inversely related; opposing.

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re·cip·ro·cal (r-spr-kl)

adj.

1. Of or relating to a neuromuscular phenomenon in which the excitation of one group of muscles is accompanied by the inhibition of another.

2. Of or being a pair of crosses in which the male parent in one cross is of the same genotype or phenotype as the female parent in the other cross.

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reciprocal

mathematically the reciprocal of x is 1/x. See also translocation.

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reciprocal crosses

matings of two phenotypes in which both the male and the female of both phenotypes are crossed, usually to detect sex linkage.