epilimnion

== English == === Etymology === From epi- +‎ -limnion. === Noun === epilimnion (plural epilimnions or epilimnia) The surface layer of a liquid body, used in reference to a reservoir or body of water ==== Related terms ==== epilimnetic / epilimnic === References === https://web.archive.org/web/20080306042807/http://library.thinkquest.org/28170/31.html