Definition

The top layer of water in a lake or reservoir that is warmer and less dense than the layers below it.

Example

In summer, the epilimnion of the lake is warm and supports a variety of aquatic life.

Conversation

Have you ever heard about the epilimnion in lakes?

Yeah, it's that top layer of warm water, right?

Exactly! It's interesting how it affects the lake's ecosystem.

For sure, it plays a big role in how fish and plants thrive.

Synonyms & Antonyms

Root Explanation

Epilimnion → It is formed from "epi-" (meaning upon or above) and "limnion" (from Greek "limnion", meaning small lake or pond). The word refers to the upper layer of water in a stratified lake, which is situated upon the deeper layers.

Memory Tip

Think of the prefix 'epi-' meaning 'upon' and 'limnion' referring to a small lake, helping you remember that 'epilimnion' is the upper layer of water above the deeper parts of a lake.

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