axion

詳細解釋：

ax.i.on

n.（名詞）
A hypothetical boson having no charge or spin and small mass, proposed to explain the existence of certain symmetries of the strong nuclear force.
軸子：無電荷、自旋以及小質量的假定玻子，用來解釋強核相互作用某些對稱性的存在

來源：
axi(al)
axi(al)
-on
-on