noun

1. the act of prescribing
2. something prescribed; order; direction; prescript
3. 1. a doctor's written direction for the preparation and use of medicine, the grinding of lenses for eyeglasses, etc.
   2. a medicine so prescribed
4. 1. a long-established, authoritative custom
   2. a claim based on this
5. Law
   1. the acquirement of the title or right to something through its continued use or possession from time immemorial or over a long period
   2. a right or title so acquired

Etymology: ME prescripcion < L praescriptio

adjective