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isonicotinic acid hydrazide

American  
[ahy-suh-nik-uh-tin-ik, hahy-druh-zahyd, -zid] / ˈaɪ səˌnɪk əˈtɪn ɪk, ˈhaɪ drəˌzaɪd, -zɪd /

noun

Pharmacology.
  1. isoniazid.


Etymology

Origin of isonicotinic acid hydrazide

1950–55; iso- + nicotinic acid ( def. ); hydraz(ine) ( def. ) + -ide ( def. )