antiproton

noun

The antiparticle of the proton, having a negative electric charge.

Synonyms: pbar

Similar Words

ant /ɛnt/ antacid antacids antagonise antagonised antagonising antagonism /ænˈtæɡənɪzəm/ antagonisms antagonist /ænˈtæɡənɪst/ antagonistic /æn.tæ.ɡə.ˈnɪs.tɪk/