thermocline(redirected from Metalimnion)
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1. An intermediate layer of oceanic water in which temperature decreases more rapidly with depth than in the layers above and below it.
2. A layer in a large body of water, such as a lake, that sharply separates regions differing in temperature, so that the temperature gradient across the layer is abrupt.
(Physical Geography) a temperature gradient in a thermally stratified body of water, such as a lake
a layer of water in an ocean or certain lakes, where the temperature gradient is greater than that of the warmer layer above and the colder layer below.
[1895–1900; thermo- + Greek klinē bed]