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An unheated outdoor structure consisting of a wooden or concrete frame and a top of glass or clear plastic, used for protecting and acclimatizing seedlings and plants.
(Horticulture) an unheated wooden frame with a glass top, used to protect young plants from the cold
a boxlike structure, usu. faced with glass, placed over a flower bed to protect plants, esp. seedlings.
An outdoor shelter for young plants that is covered with glass or, at night, with canvas. Its purpose was to help plants make a successful transition from a Hotbed or the house to an unprotected garden.
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|Noun||1.||cold frame - protective covering consisting of a wooden frame with a glass top in which small plants are protected from the cold|