cold frame


noun

a bottomless, boxlike structure, usually covered with glass or transparent plastic, and the bed of earth that it covers, used to protect plants.

Origin of cold frame

First recorded in 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for cold frame

cold frame

noun

an unheated wooden frame with a glass top, used to protect young plants from the cold

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012