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Dictionary Suite
atomic energy the energy that is released by an atom in nuclear reactions such as fission or fusion. [1/2 definitions]
hydrogen bomb an extremely powerful bomb whose destructive energy comes from the fusion of hydrogen nuclei under intense heat and pressure, forming helium nuclei.
nuclear energy energy released from atomic nuclei, as in nuclear fission or fusion.
nuclear fusion the fusion of atomic nuclei into a more massive nucleus, accompanied by a release of energy, as in the explosion of a hydrogen bomb.
protostar a collapsing cloud of gas and dust that will become a star once nuclear fusion has begun.
sacrum in higher vertebrates, a bone that supports the dorsal wall of the pelvis, formed from the fusion of two or more basal vertebrae.
thermonuclear of, pertaining to, or resulting from the fusion of the nuclei of a gas at very high temperatures. [2 definitions]
wishbone a forked bone found in front of the breastbone of most birds, formed by the fusion of the clavicles, and sometimes used, when taken from a cooked fowl, to make wishes over.