monimolimnion/ˌmɒ.nɪ.mə(ʊ)ˈlɪm.nɪ.ən/EtymologyFrom Ancient Greek μόνιμος (mónimos, “stable, permanent”) + -limnion (from Ancient Greek λῐ́μνη (lĭ́mnē, “lake”) + -ion), first appearing in the writings of British ecologist George Evelyn Hutchinson (1903–1991).monimolimnion means The lower, dense stratum of a meromictic lake (one with permanently stratified layers) that does not mix with the waters above. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounThe lower, dense stratum of a meromictic lake (one with permanently stratified layers) that does not mix with the waters above.“Mermomictic^([sic – meaning meromictic]) lakes may have an extremely high calcium carbonate content in the monimolimnion.”