particle of matter (noun)
41duality — noun 1. being twofold; a classification into two opposed parts or subclasses the dichotomy between eastern and western culture • Syn: ↑dichotomy • Derivationally related forms: ↑dual, ↑dichotomous (for: ↑dichotomy), ↑ …
42top quark — noun a hypothetical quark with a charge of +2/3 and a mass more than 100,000 times that of an electron • Syn: ↑truth quark • Hypernyms: ↑quark * * * Physics. a heavy quark having electric charge 2/3 times the elementary charge. Also called t… …
43delta ray — noun Date: 1908 an electron ejected by an ionizing particle in its passage through matter …
44moment — noun Etymology: Middle English, from Anglo French, from Latin momentum movement, particle sufficient to turn the scales, moment, from movēre to move Date: 14th century 1. a. a minute portion or point of time ; instant b. a comparatively brief… …
45darkon — noun A scalar field (or particle) that represents an elementary part of dark matter …
46axino — noun A hypothetical elementary particle, the fermionic superpartner of the axion and a possible candidate for the composition of dark matter …
47superbradyon — noun a particle with positive mass and positive energy and a superluminal critical speed in vacuum, possibly an ultimate constituent of matter similar to preons. See Also: preon, bradyon …
48density — noun /ˈden.sɪ.ti/ a) A measure of the amount of matter contained by a given volume. The number particles per unit volume of a specified volume can be considered to be the particle density for the specified volume. b) The ratio of one quantity to… …
49alloton — noun A particle that carries an imaginary electric charge; posited to account for dark matter …
50Bragg peak — noun A maximum in the graph of energy loss of a high energy particle, as it travels through matter, just before it comes to rest …
