gamma ray

gamma ray

noun

Definition of GAMMA RAY

: a photon emitted spontaneously by a radioactive substance; also : a photon of higher energy than that of an X-ray —usually used in plural

First Known Use of GAMMA RAY

1903

Rhymes with GAMMA RAY

Adige, A-OK, alleyway, All Fools' Day, All Saints' Day, All Souls' Day, all the way, anyway, appliqué, Arbor Day, arrivé, atelier, attaché, back away, ballonet, bang away, Bastille Day, Beaujolais, beta ray, beurre manié, BHA, blow away, botonée, Boxing Day, breakaway, break away, Bristol Bay, bustier, by the way, cabaret, cableway, Camagüey, canapé, cap-a-pie, Cape Cod Bay, caraway, carriageway, cassoulet, castaway, cathode ray, champlevé, chansonnier, chardonnay, Charolais, chevalier, china clay, cloisonné, cog railway, colorway, Condorcet, consommé, coryphée, cosmic ray, croupier, crudités, cutaway, day-to-day, debauchee, déclassé, dégagé, degree-day, delta ray, démodé, devotee, disarray, disobey, distingué, divorcé, divorcée, DNA, dollar day, double play, draw away, dress-down day, eagle ray, eightfold way, émigré, engagé, entranceway, entremets, entryway, espalier, everyday, exposé, expressway, fadeaway, fallaway, fall away, faraday, Faraday, faraway, fiancé, fiancée, fill away, fire away, flageolet, flyaway, foldaway, gal Friday, garde-manger, Georgian Bay, getaway, girl Friday, giveaway, give away, gratiné, gratinée, Greenaway, Groundhog Day, guillemet, Harare, hell to pay, Hemingway, hereaway, hideaway, hit the hay, HLA, holiday, holy day, Hornaday, Hudson Bay, Hugh Capet, Humboldt Bay, in a way, inter se, interplay, intraday, IPA, IRA, Ise Bay, judgment day, keep-away, kyrie, Labor Day, lackaday, latter-day, layaway, lay away, lingerie, macramé, Mandalay, manta ray, Massenet, matinee, medal play, meet halfway, MIA, Milky Way, Monterrey, Mother's Day, motorway, muscadet, mystery play, negligee, New Year's Day, New York Bay, Nicolet, night and day, Nottaway, off Broadway, Ojibwa, on the way, out of play, overlay, overplay, overstay, overweigh, Paraguay, passageway, pass away, passion play, pepper spray, Petare, photoplay, pikake, pis aller, play-by-play, plug-and-play, popinjay, potter's clay, pourparler, pousse-café, power play, present-day, protégé, protégée, pull away, put away, Put-in-Bay, Rabelais, rack railway, rainy-day, rambouillet, ratiné, recamier, recherché, reconvey, repartee, repoussé, résumé, retroussé, ricochet, right away, right-of-way, rockaway, roentgen ray, rondelet, roundelay, RNA, runaway, run away, Saguenay, salt away, San Jose, Santa Fe, São Tomé, Saturday, satyr play, semplice, Seventh-Day, severance pay, shadow play, sleepaway, sobriquet, sock away, sommelier, square away, steerageway, standaway, stowaway, straightaway, street railway, Table Bay, taboret, tarsier, taxiway, tearaway, tear away, teleplay, Tenebrae, thataway, throwaway, throw away, Thunder Bay, triple play, turn away, Udine, underlay, underpay, underplay, underway, Uruguay, velouté, Venite, vérité, vertebra, virelay, walkaway, Wang Ching-wei, waterway, wellaway, Whitsunday, workaday, working day, Yenisey, Zuider Zee

gamma ray

noun    (Medical Dictionary)

Medical Definition of GAMMA RAY

: a photon emitted spontaneously by a radioactive substance; also : a high-energy photon—usually used in plural

gamma ray

noun    (Concise Encyclopedia)

Penetrating very short-wavelength electromagnetic radiation, similar to an X-ray but of higher energy, that is emitted spontaneously by some radioactive substances (see gamma decay; radioactivity). Gamma radiation also originates in the decay of certain subatomic particles and in particle-antiparticle annihilation (see also antimatter). Gamma rays can initiate nuclear fission, can be absorbed by ejection of an electron (see photoelectric effect), and can be scattered by free electrons (see Compton effect).