noun Etymology: axial + 2-on Date: 1978 a hypothetical subatomic particle of low mass and energy that is postulated to exist because of certain properties of the strong force
AXION
Meaning of AXION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012