Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

neutron

play
noun neu·tron \ˈnü-ˌträn, ˈnyü-\

Simple Definition of neutron

  • physics : a very small particle of matter that has no electrical charge and is part of the nucleus of all atoms except hydrogen atoms

Source: Merriam-Webster's Learner's Dictionary

Full Definition of neutron

  1. :  an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus

neutronic

play \nü-ˈträ-nik, nyü-\ adjective

Origin and Etymology of neutron

probably from neutral


First Known Use: 1932

Rhymes with neutron

aeon, add-on, agon, agone, Akan, Ambon, Amman, anon, Anshan, archon, argon, Argonne, atman, axon, bank on, barchan, baton, big on, Bion, blouson, bon ton, bonbon, boron, boson, bouillon, bring on, build on, bygone, caisson, call on, canton, capon, cast on, catch on, Ceylon, chaconne, Charon, chew on, chiffon, chiton, chrismon, Cimon, cistron, clip-on, codon, come-on, cordon, coupon, crampon, crayon, crepon, cretonne, crouton, Dacron, dead-on, Dear John, doggone, Dogon, Don Juan, exon, fall on, flacon, foregone, form on, Freon, fronton, futon, Garonne, get on, Gibran, gluon, gnomon, go on, guidon, hadron, Hainan, hand on, hands-on, hang on, have on, hazan, head-on, Henan, hereon, high on, hit on, hogan, hold on, Huainan, icon, intron, ion, jargon, Jinan, jomon, kanban, kaon, Kashan, keen on, Khoisan, Kirman, koan, krypton, kurgan, Kurgan, lauan, lepton, let on, lock on, log on, look on, Luzon, macron, Masan, Medan, Memnon, meson, micron, Milan, mod con, moron, mouton, Multan, muon, natron, nekton, neon, nephron, neuron, ninon, Nippon, nylon, odds-on, Oman, Oran, Orlon, paeon, parton, Pathan, pavane, pecan, peon, Phaëthon, photon, phyton, pick on, pion, piton, plankton, pluton, pompon, prion, proton, Pusan, push on, put-on, pylon, python, racon, radon, rag on, rayon, recon, rhyton, run-on, run on, Saint John, Saipan, salon, San Juan, Schliemann, Schumann, Shaban, shaman, shaitan, Shingon, sign on, sit on, slip-on, snap-on, solon, Solon, soupçon, soutane, stand on, stolon, stuck on, Suwon, sweet on, Taiwan, taipan, take on, tampon, taxon, Teflon, Tehran, teston, thereon, Tian Shan, tisane, torchon, toucan, toyon, trade on, trigon, Tristan, triton, trogon, try on, Tucson, turned-on, turn on, Typhon, tzigane, uhlan, Ulsan, upon, wait on, walk-on, witan, whereon, Wonsan, wonton, work on, Wuhan, xenon, Xi'an, Yukon, Yunnan, zircon


NEUTRON Defined for Kids

neutron

play
noun neu·tron \ˈnü-ˌträn, ˈnyü-\

Definition of neutron for Students

  1. :  a particle that has a mass nearly equal to that of the proton but no electrical charge and that is present in all atomic nuclei except those of hydrogen




Medical Dictionary

neutron

play
noun neu·tron \ˈn(y)ü-ˌträn\

Medical Definition of neutron

  1. :  an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus




Learn More about neutron


Seen and Heard

What made you want to look up neutron? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

the lowest point

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

fox-in-summer-forest

Which of these is a synonym of inchoate?

frightening experimental massive formless
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ