n.

1. 命令，指示；規定，法規[C]
2. 處方，藥方；處方上開的藥[C]
   These pills can be obtained by prescription only.

   這些藥丸只有憑醫生處方才能買到。

3. 慣例；傳統[C]
4. 【律】法定期限，時效

a.[Z]

1. 憑處方方可購買的；根據處方配製的

n.

1. an instruction written by a medical practitioner that authorizes a patient to be issued with a medicine or treatment.
2. the action of prescribing.
3. an authoritative recommendation or ruling.
4. (also positive prescription) Law  the establishment of a claim founded on the basis of long usage or custom.