retrofire

[ re-troh-fahyuh r ]
/ ˈrɛ troʊˌfaɪər /
Rocketry.

verb (used with object), ret·ro·fired, ret·ro·fir·ing.

to ignite (a retrorocket).

verb (used without object), ret·ro·fired, ret·ro·fir·ing.

(of a retrorocket) to become ignited.

Origin of retrofire

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

Words nearby retrofire

retrocursive, retrocuspid papilla, retrodeviation, retrodirective, retrodisplacement, retrofire, retrofit, retroflex, retroflexion, retrofocus lens, retrognathism

British Dictionary definitions for retrofire

retrofire
/ (ˈrɛtrəʊˌfaɪə) /

noun

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