Definition of hothouse effect in US English:

hothouse effect

noun

  • 1A heating or forcing effect like that in a hothouse.

  • 2Atmospheric Physics and Environmental Science= "greenhouse effect".

  • 3Figurative and in extended use; especially an effect of making something grow rapidly or become extreme.

Origin

Mid 19th century. From hothouse + effect. Compare greenhouse effect.

Pronunciation

hothouse effect

/ˈhɒthaʊs ɪˌfɛkt/