Origin of thermoclinethermo- + -cline, as in anticline
- An intermediate layer of oceanic water in which temperature decreases more rapidly with depth than in the layers above and below it.
- 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.
- (geography) A layer within a body of water or air where the temperature changes rapidly with depth.
thermo- +"Ž -cline