From Longman Dictionary of Contemporary Englishdefrostde‧frost /ˌdiːˈfrɒst $ -ˈfrɒːst/ verb 1 DF[intransitive, transitive] if frozen food defrosts, or if you defrost it, it gets warmer until it is not frozen → melt, thaw2 DH[intransitive, transitive] if a freezer or refrigerator defrosts, or if you defrost it, it is turned off so that the ice inside it melts3 [transitive] American EnglishTTC to remove ice from inside the windows of a car by using heat or warm air→ See Verb table
Examples from the Corpus
defrost• It is useful, however, for its condensed advice on cooking methods, defrosting and especially comparative power settings.• In 1991 as in 1980, one major use of microwaves is in defrosting food.• It is best to defrost frozen goose slowly in the refrigerator for 1 to 2 days.• At some point Rufus himself had taken the things out of the fridge and left the door open to defrost it.• For puree, defrost the berries and press through a food mill.• For sauce, defrost the berries in a colander over a bowl. 