return valve

noun 0.703

reverser

noun 0.649

check valve

noun 0.638

reversible

noun 0.632

ball valve

noun 0.624

reversal

noun 0.615

relief valve

noun 0.595

valve

noun 0.593

time reversal

noun 0.590

demand valve

noun 0.590

refrigerant

noun 0.582

suction valve

noun 0.581

reverter

noun 0.577

heat pump

noun 0.577

reverse

noun 0.570

exhaust valve

noun 0.561

reversibility

noun 0.552

heart valve

noun 0.552

microvalve

noun 0.549

heat exchanger

noun 0.545

piston valve

noun 0.545

inverter

noun 0.534

thermionic valve

noun 0.532

revert

noun 0.532

safety valve

noun 0.528

valvula

noun 0.527

revertant

noun 0.526

reflux condenser

noun 0.522

needle valve

noun 0.520

rectifier

noun 0.518

tricuspid valve

noun 0.514

reciprocator

noun 0.508

reversionary

noun 0.506

evaporator

noun 0.503

valva

noun 0.502

semilunar valve

noun 0.502

regurgitant

noun 0.502

inverse

noun 0.501

backflow

noun 0.500

reverse link

noun 0.500

water heater

noun 0.500