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.
Relevance. Rating Newest Oldest. Best Answer: It refers to a prescription. It's latin for 'Recipe' I prefer the explanation that Rx is derived from the astrological sign for Jupiter which was once placed on prescriptions to invoke that god's blessing on the drug to help the patient recover.