| 单词 |
axion |
| 释义 |
axion
ax·i·on A0555950 (ăk′sē-ŏn′)n. A hypothetical boson having no charge or spin and small mass, proposed to explain the existence of certain symmetries of the strong nuclear force.
[axi(al) + -on.]axion (ˈæksɪˌon) n (Atomic Physics) physics a hypothetical neutral elementary particle postulated to account for certain conservation laws in the strong interaction[C20: from axi(om) + -on]ax•i•on (ˈæk siˌɒn)
n. an elementary particle having no charge, zero spin, and small mass, postulated to exist by some forms of quantum chromodynamics. [1978; axi(al) + -on1] axion
axion (aks -ee-on) A hypothetical elementary particle of very low mass and zero charge. Axions have potentially important consequences in astrophysics and cosmology, such as having a possible effect on the cooling of stars and making up part or all of the dark matter in the Universe. Some of these consequences enable limits to be calculated for the values of the mass and other properties of axions.axion[′ak·se‚än] (particle physics) A hypothetical neutral pseudoscalar boson with mass roughly of order 100 keV to 1 MeV, postulated to preserve the parity and time-reversal invariance of strong interactions, despite the effects of instantons. axion
ax·i·on (ak'sē-on), The brain and spinal cord (cerebrospinal axis). |
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