Janet Paterson wrote: > hi all > > it just occurred to me > i don't know what Rx means other than prescription > what is its source? [i presume latin] > what about dx? for diagnosis? is it an 'official' term? Janet, Yes, Rx is an 'official' term. I looked it up in Taber's Medical Dictionary and it states that Rx signifies "Recipe" from the Latin "Recipere". meaning to take. Bonnie Cunningham NPF