antimatter
What is another word for antimatter? Here is its meaning, with related words and examples.
Noun — Matter made up of antiparticles, which have the same mass as ordinary particles but opposite charge, and which annihilate on contact with ordinary matter.
Antonyms
Etymology
Coined in 1898 by physicist Arthur Schuster in a playful article about hypothetical matter that repels gravity, though the modern scientific meaning only took hold in the 1940s.
Full origin of antimatter →