ther·​mo·​cline | \ ˈthər-mə-ˌklīn How to pronounce thermocline (audio) \

Definition of thermocline

: the region in a thermally stratified body of water which separates warmer surface water from cold deep water and in which temperature decreases rapidly with depth

Examples of thermocline in a Sentence

Recent Examples on the Web The ocean has three primary layers -- the surface layer (sometimes referred to as the mixed layer), the thermocline layer and the deep ocean. Allison Chinchar, CNN, 7 May 2022 The best Lake Erie walleye and steelhead trout fishing from Lorain to Conneaut has been in deeper waters, and anglers are targeting fish hanging around the thermocline that separates the warmer and cooler waters in summer. cleveland, 26 Aug. 2021 Reports from successful fishermen pinpoint the thermocline at just 10 feet from the lake bottom in 63- to 68-foot depths. cleveland, 26 Aug. 2021 This concentrates the bait and fish to whatever depth the thermocline forms. The Editors, Outdoor Life, 8 June 2020 In a lot of bodies of water, a thermocline also shows up as the water temperature rises. The Editors, Outdoor Life, 8 June 2020 In summer, hot weather for months creates a layer of warm water to form on the surface, and beneath it, the thermocline, a layer of cool, oxygenated water full of fish, often 40 to 60 feet deep. Tom Stienstra,, 18 Oct. 2019 In the fall, that warm surface layer sinks and is replaced on top by the thermocline. Tom Stienstra,, 18 Oct. 2019 Fishing: Cherry Lake provides trout fishing, best for those who troll and can target the thermocline under the surface layer of warm water. Tom Stienstra,, 8 Aug. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thermocline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of thermocline

1898, in the meaning defined above

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The first known use of thermocline was in 1898

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Cite this Entry

“Thermocline.” Dictionary, Merriam-Webster, Accessed 25 Sep. 2022.

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