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definitions

crater lake

noun
  1. a body of water occupying a roughly circular, steep-sided volcanic crater or caldera.

Origin of crater lake

First recorded in 1875–80

Crater Lake

noun
  1. a lake in the crater of an extinct volcano in SW Oregon, in Crater Lake National Park. 20 sq. mi. (52 sq. km); 1996 feet (608 meters) deep.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018