Today's Word of the Day means...
reciprocal re·cip·ro·cal (rĭ-sĭp'rə-kəl)
Of or relating to a neuromuscular phenomenon in which the excitation of one group of muscles is accompanied by the inhibition of another.
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.
The number by which a given number must be multiplied to get a result of one. The reciprocal of one-half, for example, is two.