Final answer:
The abbreviation for prescription is Rx, which comes from the Latin word 'recipere.' Other abbreviations like iv, prn, and d.a.w. have different meanings related to medication administration and pharmacy instructions.
Step-by-step explanation:
The abbreviation for prescription is Rx. This symbol is derived from the Latin word “recipere,” which means “to take.” It is commonly seen on prescription labels and medical documents to indicate that what follows is a prescription. The other abbreviations mentioned, such as ‘iv’ stands for intravenous, ‘prn’ means ‘as needed’ (from the Latin ‘pro re nata’), and ‘d.a.w.’ stands for ‘dispense as written,’ which instructs the pharmacist not to substitute a generic brand or different dosage.