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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

causal agent, cause, causal agency go
any entity that produces an effect or is responsible for events or results

agent go
a substance that exerts some force or effect

drug go
a substance that is used as a medicine or narcotic

stimulant, stimulant drug, excitant
a drug that temporarily quickens some vital process

noun.artifact

7 Subcategories

speed, amphetamine, pep pill, upper go
a central nervous system stimulant that increases energy and decreases appetite
analeptic go
a medication used as a stimulant to the central nervous system
aphrodisiac go
a drug or other agent that stimulates sexual desire
butyl nitrite, isobutyl nitrite go
a colorless pungent liquid sometimes used as a stimulant drug by drug abusers
cat, kat, khat, qat, quat, Arabian tea, African tea go
the leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea
methylphenidate, Ritalin go
central nervous system stimulant (trade name Ritalin) used in the treatment of narcolepsy in adults and attention deficit disorder in children
popper go
a container of stimulant drug (amyl nitrate or butyl nitrite)