M3O1N1O1P3R1O1P3E1L1L1A1N1T1
20 points
MONOPROPELLANT is validvalid
[n MONOPROPELLANTS]
a rocket propellant containing both the fuel and the oxidizer in a single substance [n -S]
[n MONOPROPELLANTS]
a rocket propellant containing both the fuel and the oxidizer in a single substance [n -S]