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drug  (drg)
a. A substance used in the diagnosis, treatment, or prevention of a disease or as a component of a medication.
b. Such a substance as recognized or defined by the U.S. Food, Drug, and Cosmetic Act.
2. A chemical substance, such as a narcotic or hallucinogen, that affects the central nervous system, causing changes in behavior and often addiction.
3. Obsolete A chemical or dye.
tr.v. drugged, drug·ging, drugs
1. To administer a drug to.
2. To poison or mix (food or drink) with a drug.
3. To stupefy or dull with or as if with a drug: drugged with sleep.

[Middle English drogge, from Old French drogue, drug, perhaps from Middle Dutch droge (vate), dry (cases), pl. of drog, dry.]

drug [drʌg]
1. (Medicine / Pharmacology) any synthetic, semisynthetic, or natural chemical substance used in the treatment, prevention, or diagnosis of disease, or for other medical reasons Related adj pharmaceutical
2. (Law / Recreational Drugs) a chemical substance, esp a narcotic, taken for the pleasant effects it produces
(Business / Commerce)
drug on the market a commodity available in excess of the demands of the market
vb drugs, drugging, drugged (tr)
1. (Cookery) to mix a drug with (food, drink, etc.)
2. (Medicine / Pharmacology) to administer a drug to
3. (Medicine / Pharmacology) to stupefy or poison with or as if with a drug Related prefix pharmaco-
[from Old French drogue, probably of Germanic origin]
druggy  adj

drug  (drg)
1. A chemical substance, especially one prescribed by a medical provider, that is used in the diagnosis, treatment, or prevention of a condition or disease. Drugs are prescribed for a limited amount of time, as for an acute infection, or on a regular basis for chronic disorders, such as hypertension.
2. A chemical substance such as a narcotic or a hallucinogen that affects the central nervous system and is used recreationally for perceived desirable effects on personality, perception, or behavior. Many recreational drugs are used illicitly and can be addictive.

drug  /drg/  n. 1 a medication: The doctor gave the patient a new drug. 2 a narcotic, esp. an illegal one: Cocaine is a hard drug. 3 on drugs: addicted to, or under the influence of, drugs: She is on drugs for the pain.
v. [T] drugged, drugging, drugs to place under the influence of a drug: The kidnapper drugged his victim to keep her quiet.||He kept her <adj.> drugged (up).

Thesaurus: drug n. 1 a medicine, pill, prescription, remedy 2 dope | pills. drug

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