helium burning

noun 0.809

helium flash

noun 0.727

nuclear fusion

noun 0.726

helium

noun 0.688

hydrogen burning

noun 0.664

fusion reactor

noun 0.649

liquid helium

noun 0.637

cold fusion

noun 0.610

heliox

noun 0.597

fusing

noun 0.588

nucleosynthesis

noun 0.582

thermonuclear

noun 0.535

electrofusion

noun 0.531

helio

noun 0.523

heliosheath

noun 0.522

atomic fission

noun 0.519

hydrogen

noun 0.513

nuclear fission

noun 0.510

heliosphere

noun 0.503

hydrogen bomb

noun 0.501