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.
Sr. Member Group: Trusted Members Posts: 348 Member No.: 2,517 Joined: May 05, 2005. QUOTE. The use of Rx in prescriptions originated as an astrological symbol that was written for talismanic reasons at the start of medical prescriptions.