pro·pel·lant also pro·pel·lent 
(prə-pĕlənt)
(prə-pĕlənt)n.
1. Something, such as an explosive charge or a rocket fuel, that propels or provides thrust.
2. A compressed inert gas, such as a fluorocarbon, that acts as a vehicle for discharging the contents of an aerosol container.
adj.
Serving to propel; propelling.
- out of date
- out-of-date
- out-of-door
- out-of-door
- out-of-doors
- out-of-doors
- out of gourd
- out of hand
- out of head
- out of humor
- out of it
- out of it
- out of joint
- out of key
- out of line
- out of luck
- out of one's gourd
- out of one's head
- out of phase
- out of play
- out of plumb
- out-of-pocket
- out of pocket
- out of print
- out of season