Prescription

Noun

1. A written order from an authorized medical practitioner for provision of a medicine or other treatment, such as the specific lenses needed for a pair of glasses.

   "The surgeon had written thousands of prescriptions for pain killers without proper examinations before the police raided the clinic."

2. The medicine or treatment provided by such an order.

   "I need you to pick up gramma's prescriptions on your way home."

3. Any plan of treatment or handling; the treatment or handling thus provided.

   "Early to bed and early to rise is a prescription for a long, healthy, and terrible life."

4. Synonym of enactment, the act of establishing a law, regulation, etc., particularly in writing; an instance of this.
5. The act of establishing or formalizing ideal norms for language use, as opposed to describing the actual norms of such use; an instance of this.