Definition of methoprene in US English:

methoprene

noun

Chemistry
  • A sesquiterpenoid analogue of juvenile hormone that prevents the maturation of insect eggs and larvae and is used for the control of mosquitoes, fleas, and certain agricultural pests; propyl 2-(3,7,11-trimethyl-11-methoxydodec-2-4-dien)oate, C₁₉H₃₄O₃.

Origin

1970s; earliest use found in Journal of Economic Entomology. From meth- (in methyl: see note s.v. meth-) + -oprene.

Pronunciation

methoprene

/ˈmɛθə(ʊ)priːn/