drug meaning
EN
[dɹʌɡ] [d͡ʒɹʌɡ] [-ʌɡ] 
US WDrug
- A drug is, in the broadest of terms, a chemical substance that has known biological effects on humans or other animals. Foods are generally excluded from this definition, in spite of their physiological effects on animal species.
- In pharmacology, a drug is "a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being.
- Psychoactive drugs are chemical substances that affect the function of the nervous system, altering perception, mood or consciousness. Alcohol, nicotine, and caffeine are the most widely consumed psychoactive drugs worldwide.
- NounPLdrugs
- (pharmacology) A substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose.
- Aspirin is a drug that reduces pain, acts against inflammation and lowers body temperature.
- The revenues from both brand-name drugs and generic drugs have increased.
- A psychoactive substance, especially one which is illegal and addictive, ingested for recreational use, such as cocaine.
- Anything, such as a substance, emotion, or action, to which one is addicted.
- Any commodity that lies on hand, or is not salable; an article of slow sale, or in no demand.
- OBS A drudge.
- (pharmacology) A substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose.
- VerbSGdrugsPRdruggingPT, PPdrugged
- VT To administer intoxicating drugs to, generally without the recipient's knowledge or consent.
- She suddenly felt strange, and only then realized she'd been drugged.
- VT To add intoxicating drugs to with the intention of drugging someone.
- She suddenly felt strange. She realized her drink must have been drugged.
- VI To prescribe or administer drugs or medicines.
- simple past tense and past participle of drag.
- You look like someone drug you behind a horse for half a mile.
- VT To administer intoxicating drugs to, generally without the recipient's knowledge or consent.
- More Examples
- Used in the Middle of Sentence
- Using targeted drug delivery systems such as immunoliposomes that accumulate selectively in designated target cell types, the dosage of rapamycin may potentially be optimized.
- There are drugs designed to excite certain nerves in our body.
- Itoh, S. & Navia, M. A. Structure comparison of native and mutant human recombinant FKBP12 complexes with the immunosuppressant drug FK506 (tacrolimus) .
- Used in the Ending of Sentence
- The "war on drugs" is a campaign against the use of narcotic drugs.
- It may serve as a new candidate or a leading compound for the development of antiosteoporosis drug.
- It is 25 to 55 percent, not 15 to 20 percent, which is the amount for nonstatin cholesterol drugs.
- Used in the Middle of Sentence
Definition of drug in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Verbs
- Verb forms
- Irregular verb forms
- Irregular past participles
- Irregular simple past forms
- Irregular past participles
- Participles
- Past participles
- Past participles
- Verb simple past forms
- Irregular verb forms
- Intransitive verbs
- Transitive verbs
- Verb forms
- Nouns
Source: Wiktionary
Grammatically, this word "drug" is a noun, more specifically, a countable noun. It's also a verb, more specifically, a verb form, an intransitive verb and a transitive verb.