Definition of methisazone in US English:

methisazone

(also metisazone)

noun

Pharmacology
  • A thiosemicarbazone that inhibits viral protein production, once used for the prophylaxis of smallpox and the treatment of vaccination complications; N-methylisatin 3-thiosemicarbazone, C₁₀H₁₀N₄OS. [International Nonproprietary Name (1996) and British Approved Name (1998): metisazone.]

Origin

1960s; earliest use found in The British Medical Journal. From meth- (in methyl: see note s.v. meth-) + is- + -azone.

Pronunciation

methisazone

/mɪˈθʌɪsəˌzəʊn/