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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
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physical entity go
an entity that has physical existence
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causal agent, cause, causal agency go
any entity that produces an effect or is responsible for events or results
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agent go
a substance that exerts some force or effect
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drug go
a substance that is used as a medicine or narcotic
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medicine, medication, medicament, medicinal drug go
(medicine) something that treats or prevents or alleviates the symptoms of disease
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calcium blocker, calcium-channel blocker go
any of a class of drugs that block the flow of the electrolyte calcium (either in nerve cell conduction or smooth muscle contraction of the heart)
nifedipine, Procardia
calcium blocker (trade name Procardia)
noun.artifact

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