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epilimnion

noun
epi·​lim·​ni·​on | \ ËŒe-pÉ™-ˈlim-nÄ“-ˌän How to pronounce epilimnion (audio) , -nÄ“-É™n\

Definition of epilimnion

: the water layer overlying the thermocline of a lake

First Known Use of epilimnion

circa 1910, in the meaning defined above

History and Etymology for epilimnion

epi- + Greek límnē "standing water, pool, marshy lake" + -ion, noun suffix — more at limnetic

Note: See note at hypolimnion.

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More from Merriam-Webster on epilimnion

Britannica.com: Encyclopedia article about epilimnion

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