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.
â is a symbol meaning prescription. It is sometimes transliterated as R x  or just Rx. This symbol originated in medieval manuscripts as an abbreviation of the Late Latin verb recipe, the imperative form of recipere, to take or take thus. prescription (â) is a health-care program implemented by a physician or other qualified practitioner in the form of instructions that govern the plan of care for an individual patient.