Dictionary.com
Thesaurus.com

defroster

American  
[dih-fraw-ster, -fros-ter] / dɪˈfrɔ stər, -ˈfrɒs tər /

noun

  1. a person or thing that defrosts.

  2. especially British, demister.  Also called defogger.  a device for melting frost, ice, or condensation on a windshield or other window of an automobile, airplane, etc., by warming the window.


defroster British  
/ diːˈfrɒstə /

noun

  1. a device by which the de-icing process of a refrigerator is accelerated, usually by circulating the refrigerant without the expansion process

"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

Etymology

Origin of defroster

First recorded in 1925–30; defrost + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I said my goodbyes, brushed the snow off my mini-SUV and cranked up the defroster.

From Los Angeles Times

The Corvette came with windshield defroster and cigarette lighter.

From Seattle Times

Without the center screen, the cars can lose rearview camera displays, settings that control windshield defrosters and indicators that say whether the cars are in drive, neutral and reverse.

From Seattle Times

That means picking targets — the seat belt chime, rolling stops, a windshield defroster — that may strike executives and even some owners as trivial.

From Washington Post

Tesla has issued 10 recalls since October on a range of problems, from a defective trunk latching mechanism to a faulty windshield defroster.

From The Verge