retrofire

American

[re-troh-fahy^uhr] / ˈrɛ troʊˌfaɪər /

verb (used with object)

retrofired, retrofiring

to ignite (a retrorocket).

verb (used without object)

retrofired, retrofiring

(of a retrorocket) to become ignited.

retrofire British

/ ˈrɛtrəʊˌfaɪə /

noun

the act of firing a retrorocket
the moment at which it is fired

"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 retrofire

An Americanism dating back to 1960–65; retro- + fire

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023