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.
The origin of Rx, used as an abbreviation for prescription, has been attributed to the Latin word recipe which means take. Also, it has been associated with Jupiter, the chief deity of Roman state religion until Christianity became the dominant religion of the Roman Empire.