propulsor

noun 0.738

propulsion

noun 0.701

pressurant

noun 0.642

propeller

noun 0.624

propane

noun 0.599

accelerant

noun 0.598

propylene

noun 0.579

projectile

noun 0.578

rocket motor

noun 0.567

foaming agent

noun 0.567

propylene glycol

noun 0.563

igniter

noun 0.559

fuel

noun 0.559

thruster

noun 0.558

rocket engine

noun 0.554

propene

noun 0.550

solid rocket

noun 0.548

proponent

noun 0.547

gas jet

noun 0.545

gunpowder

noun 0.545

propyl

noun 0.543

combustible

noun 0.542

stimulant

noun 0.541

impeller

noun 0.540

specific impulse

noun 0.539

repellent

noun 0.537

turboprop

noun 0.534

producer gas

noun 0.529

jet pack

noun 0.528

petrol

noun 0.527

chemical agent

noun 0.526

carrier gas

noun 0.525

propionate

noun 0.525

explosive

noun 0.524

propanol

noun 0.523

nitropropane

noun 0.521

ejector

noun 0.521

pressor

noun 0.521

propagule

noun 0.519

promoter

noun 0.518

leavening agent

noun 0.517

motive power

noun 0.514

propylene oxide

noun 0.514

specific thrust

noun 0.514

catalyst

noun 0.514

propping

noun 0.514

hybrid rocket

noun 0.514

rocket

noun 0.513

aerosol

noun 0.513

refrigerant

noun 0.512

protoxide

noun 0.511

promotor

noun 0.510

aerosol can

noun 0.509

turbopump

noun 0.509

booster

noun 0.509

impulsion

noun 0.508

fuelling

noun 0.508

inhalant

noun 0.507

proton

noun 0.507

propagator

noun 0.506

excipient

noun 0.505

missile

noun 0.505

expectorant

noun 0.504

catalytic agent

noun 0.503

oxyfuel

noun 0.501

repeller

noun 0.501

black powder

noun 0.501

prompter

noun 0.500

nozzle

noun 0.500