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1. Directions prescribed beforehand; the action of prescribing authoritative rules or directions
   "I tried to follow her prescription for success"
    
2. A drug that is available only with written instructions from a doctor or dentist to a pharmacist
   "he told the doctor that he had been taking his prescription regularly"; "he told the doctor that he had been taking his prescription drug regularly"; "he told the doctor that he had been taking his prescription medicine regularly"
   - prescription drug, prescription medicine, ethical drug
    
3. Written instructions for an optician on the lenses for a given person
    
4. Written instructions from a physician or dentist to a pharmacist concerning the form and dosage of a drug to be issued to a given patient
   - Rx

1. Available only with a doctor's written prescription
   "a prescription drug"

Derived forms: prescriptions

See also: prescribe

Type of: black and white, direction, instruction, medicament, medication, medicinal drug, medicine, written communication, written language

Antonym: nonprescription

Encyclopedia: Prescription