Definition of monimolimnion in English:

monimolimnion

Pronunciation /ˌmɒnɪmə(ʊ)ˈlɪmnɪən/

noun

Ecology
  • The lower, denser, non-circulating layer of a meromictic lake.

Origin

1930s; earliest use found in George Hutchinson (b. 1903). From German Monimolimnion from ancient Greek μόνιμος stable + German -limnion.