isoniazid

noun iso·ni·a·zid \ˌī-sə-ˈnī-ə-zəd\

Definition of ISONIAZID

: a crystalline compound C₆H₇N₃O used in treating tuberculosis

is- + nicotinic acid + hydrazide

First Known Use: 1952

Medical Dictionary

noun iso·ni·a·zid \ˌī-sə-ˈnī-ə-zəd\

: a crystalline compound C₆H₇N₃O used in treating tuberculosis—called also isonicotinic acid hydrazide

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