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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

drug of abuse, street drug go
a drug that is taken for nonmedicinal reasons (usually for mind-altering effects)

sedative, sedative drug, depressant, downer go
a drug that reduces excitability and calms a person

sedative-hypnotic, sedative-hypnotic drug go
a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep

barbiturate
organic compound having powerful soporific effect

noun.artifact

7 Subcategories

amobarbital go
a barbiturate with sedative and hypnotic effects
barbital, veronal, barbitone, diethylbarbituric acid, diethylmalonylurea go
a barbiturate used as a hypnotic
mephobarbital, Mebaral go
a long-acting crystalline barbiturate (trade name Mebaral) used as a sedative and as an anticonvulsant in the treatment of epilepsy
yellow jacket, pentobarbital sodium, pentobarbital, Nembutal go
a barbiturate (trade name Nembutal) used as a sedative and hypnotic and antispasmodic
secobarbital sodium, secobarbital, Seconal, red devil go
barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions
sodium thiopental, phenobarbital, phenobarbitone, Luminal, purple heart go
a long-acting barbiturate used as a sedative
thiopental, thiopental sodium, thiopentobarbital sodium, Pentothal go
barbiturate that is a hygroscopic powder (trade name Pentothal) that is a strong barbiturate that acts rapidly