to make or become free of frost or ice to thaw, esp through removal from a refrigerator
WordReference Random House Learner's Dictionary of American English © 2025
de•frost /dɪˈfrɔst, -ˈfrɑst/USA pronunciation
v.
WordReference Random House Unabridged Dictionary of American English © 2025- to (cause to) become free of ice or frost: [ ~ + obj]:We defrosted the refrigerator again.[no obj]:The refrigerator is defrosting.
- to thaw (frozen food): [ ~ + obj]:Defrost the meat in the microwave.[no obj]:The meat is on the counter defrosting.
de•frost
(di frôst′, -frost′),USA pronunciation v.t.
v.i.
- to remove the frost or ice from:to defrost a refrigerator; to defrost the windshield of a car.
- to thaw or partially thaw (frozen food).
v.i.
- to become free of ice or frost:The refrigerator defrosted quickly.
- to thaw, as frozen food:The meat took two hours to defrost.
- de- + frost 1890–95
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