neu·tron (n  tr n , ny-)n. Abbr. n An electrically neutral subatomic particle in the baryon family, having a mass 1,839 times that of the electron, stable when bound in an atomic nucleus, and having a mean lifetime of approximately 1.0 × 103 seconds as a free particle. It and the proton form nearly the entire mass of atomic nuclei. See Table at subatomic particle. |
neutron [ˈnjuːtrɒn]
n
(Physics / General Physics) Physics a neutral elementary particle with a rest mass of 1.674 92716 ✕ 10-27 kilogram and spin ½; classified as a baryon. In the nucleus of an atom it is stable but when free it decays
[from neutral, on the model of electron]
| neutron (ntrn) An electrically neutral subatomic particle in the baryon family, having a mass of 1.674 × 10-24 grams (1,838 times that of the electron and slightly greater than that of the proton). Neutrons are part of the nucleus of all atoms, except hydrogen, and have a mean lifetime of approximately 1.0×103 seconds as free particles. They consist of a triplet of quarks, including two down quarks and one up quark, bound together by gluons. In radioactive atoms, excess neutrons are converted to protons by beta decay. Beams of neutrons from nuclear reactors are used to bombard the atoms of various elements to produce fission and other nuclear reactions and to determine the atomic arrangements in molecules. See Table at subatomic particle. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  neutron - an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleusnucleon - a constituent (proton or neutron) of an atomic nucleus |
Translations
n neutron [ˈnjuːtron]
one of the particles which make up the nucleus of an atom. neutron نيوتْرون неутрон neutron neutron das Neutron νετρόνιο neutrón neutron ذره بدون بارالکتريکى neutroni neutron נוּיטרוֹן न्यूट्रान (परमाणु का) neutron neutron neutron nifteind neutrone 中性子 중성자 neutronas neitrons neutron neutron nøytron neutron neutrão neutron нейтрон neutrón nevtron neutron neutron อนุภาคของนิวเคลียส nötron 中子 нейтрон ايک ذرہ جس سے ايٹم کا مرکز تيار ہوتا ہے nơ trôn 中子
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