Meanings
plural defrosters
- A device for removing frost or ice from a surface or food by applying heat.
They were both sitting inside, the engine running and the defroster blasting hot air against the windshield, before Jerry spoke again.
1996, Debbie Macomber, Mrs. Miracle, page 1741 more example
The driver's window in each cab is fitted with an electrically-operated windscreen wiper, a sun visor, and a defroster, heated from a nozzle.
1958 July 28, “German Railbuses for British Railways”, in Railway Magazine, page 501
Synonyms & antonyms
nounheater that removes ice or frost (as from a windshield or a refrigerator or the wings of an airplane)
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Translations
German Entfroster
- Entfrosterdevice for removing frost or ice from a surface or food by applying heat
Welsh dadrewydd
- dadrewydddevice for removing frost or ice from a surface or food by applying heat
Cite this entry
defroster. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/defroster
“defroster.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/defroster. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “defroster,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/defroster.
Source: defroster on Wiktionary, CC BY-SA 4.0.