Share this entry

Share this page

axion

Line breaks: axion
Pronunciation: /ˈaksɪɒn
 
/

Definition of axion in English:

noun

Physics
A hypothetical subatomic particle postulated to account for the rarity of processes which break charge-parity symmetry.
Example sentences
  • Or another candidate is an even more exotic particle called the axion.
  • This has helped to promote particle-DM, with candidates such as axions, neutralinos and other cold DM particles, as well as warm DM, and self-interacting DM, whose nature is not even specified.
  • Axions, if they exist at all, do so in our ordinary dimensions, but they are stable neutral particles.

Origin

1970s: from axial + -on.

Definition of axion in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day sacerdotal
Pronunciation: ˌsasəˈdəʊt(ə)l
adjective
relating to priests or the priesthood; priestly