Antimatter

Pronunciation

IPA: /ËˆÃ¦ntimÃ¦ËŒtÉš/, /ËˆÃ¦n.taÉª.mÃ¦ËŒtÉš/

Origin

From - + matter.

Noun

antimatter

(usually uncountable; plural antimatters)

(physics) Matter that is composed of the antiparticles of those that constitute normal matter.
(physics) A form of matter that has a key property, such as charge, opposite to that of ordinary matter.