1. a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream; [syn: reaction-propulsion engine, reaction engine]
WordNet (r) 3.0 (2006):
reaction-propulsion engine
n 1: a jet or rocket engine based on a form of aerodynamic
propulsion in which the vehicle emits a high-speed stream
[syn: reaction-propulsion engine, reaction engine]