Microwaves are used to detect speeding cars and to send telephone and television communications. Industry uses microwaves to dry and cure plywood, to cure rubber and resins, to raise bread and doughnuts, and to cook potato chips. But the most common consumer use of microwave energy is in microwave ovens.
An abbreviation is simply a shortening of a word or phrase. An abbreviation can be an acronym or an initialism. An acronym can be pronounced like a word: AFLAC (as uttered by â¦ the company's mascot duck), NASA, or URL.
Best Answer: stands for latin, pro re nata which means for the situation's needs and is used in medical prescriptions to mean as needed. also .prn can be computer printer file in some systems. And many others, see acronym list in source below. It usually means as needed in reference to medications.