gelled propellantA rocket propellant that has additives to make it thixotropic. This means it has the consistency of jelly when at rest but can be made to move as a liquid through pipes, valves, and so on. Experimental rocket engines have shown gelled propellants to be generally safer than liquid propellants, yet be capable of performing well. Related category PROPELLANTSAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |