pyrazinamide UK /ˌpɪ.ɹəˈzɪn.ə.mʌɪd/US /ˌpɪɹ.əˈzɪn.əˌmaɪd/ noun1 •The amide of pyrazinoic acid; a bacteriostatic prodrug, pyrazine-2-carboxamide, used to treat tuberculosis. formspyrazinamides