First Known Use: circa 1910
Dictionary
epilimnion
noun epi·lim·ni·on \ˌe-pə-ˈlim-nē-ˌän, -nē-ən\
Definition of EPILIMNION
: the water layer overlying the thermocline of a lake
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Origin of EPILIMNION
New Latin, from epi- + Greek limnion, diminutive of limnē marshy lake — more at limnetic
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