reaction propulsion

NOUN
19 LETTERS · STARTS WITH R

reaction propulsion is a valid 19-letter word worth 24 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
R1E1A1C3T1I1O1N1P3R1O1P3U1L1S1I1O1N1
1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =24 PTS
DOUBLE WORD → 48TRIPLE WORD → 72
MEANING

What does reaction propulsion mean?

NOUN · 1 SENSE
1

Propulsion that results from the ejection at high velocity of a mass of gas to which the vehicle reacts with an equal and opposite momentum.

BROADER