adjective
(sciences) Possessing or pertaining to energy.
Characterised by force or vigour; full of energy; lively, vigorous, furious.
(obsolete) Having powerful effects; efficacious, potent.
(grammar) Of or relating to certain Arabic verb forms that emphasize or intensify the meaning.
noun
(materials science, chiefly in the plural) Any material used for its release of energy, either as an explosive, propellant, or for pyrotechnic effects.