Term: photon: a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: frock: a habit worn by clerics
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: toss: an abrupt movement
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: elegiac stanza: a quatrain in iambic pentameter with abab rhyme scheme
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: vacation: the act of making something legally void
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: optic nerve: the cranial nerve that serves the retina
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: oxtail soup: a soup made from the skinned tail of an ox
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: overachievement: better than expected performance (better than might have been predicted from intelligence tests)
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: nyctimene: East Indian fruit bats
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: dane: a native or inhabitant of Denmark
Broader: gauge boson: a particle that mediates the interaction of two elementary particles | Unrelated: skivvy: a female domestic servant who does all kinds of menial work