See more synonyms on Thesaurus.com. noun, (used with a singular verb) 1. Biology. the science of heredity, dealing with resemblances and differences of related organisms resulting from the interaction of their genes and the environment.
Rx: A medical prescription. The symbol Rx is usually said to stand for the Latin word recipe meaning to take.. It is customarily part of the superscription (heading) of a prescription.
According to most sources, Rx is derived from the Latin word ârecipe,â meaning âtake.â Among several alternative theories, however, is the belief that the Rx symbol evolved from the Eye of Horus, an ancient Egyptian symbol associated with healing powers.