Definition of epilimnion in English:

epilimnion

Syllabification: ep·i·lim·ni·on
Pronunciation: /ˌepəˈlimnēˌän, -nēən
 
/

noun (plural epilimnionia /-nēə/)

The upper layer of water in a stratified lake.
More example sentences
  • The chemistry of the two parts of a freshwater lake, the epilimnion and the hypolimnion, is affected by biological processes and by circulation.
  • The amount of bacterial cells imported via the inlets in relation to bacterioplankton cells produced in the epilimnion of the lakes was also determined.
  • At each pond, we took two replicate water samples from the epilimnion using an integrated depth sampler; we took samples from the surface to 1.25 m in Monday Bog and to 1.75 m in Wednesday Bog.

Origin

early 20th century: from epi- 'above' + Greek limnion (diminutive of limnē 'lake').

Definition of epilimnion in:

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