antimatter

[ an-tee-mat-er, an-tahy- ]

noun

, Physics.

1. matter composed only of antiparticles, especially antiprotons, antineutrons, and positrons.

antimatter

/ ˈæntɪˌmætə /

noun

1. a form of matter composed of antiparticles, such as antihydrogen, consisting of antiprotons and positrons

antimatter

/ ăn′tĭ-măt′ər /

1. A form of matter that consists of antiparticles.

antimatter

1. In physics , matter made of antiparticles .

Word History and Origins

Origin of antimatter¹

First recorded in 1950–55; anti- + matter

Example Sentences

By measuring the neutrinosand their antimatter partners, antineutrinos, in both locations, physicists can study how these particles change their type as they travel, a phenomenon known as neutrino oscillation.

From Science Daily

One type fires electrons into their antimatter counterparts, positrons, but these e+e- colliders struggle to reach high energies.

From Science Magazine

Professor Schiller: "Our current result is the very first step towards a precise comparison of the behaviour of matter and antimatter: We would use spectroscopy of H2+ and its antimatter counterpart to seek extremely small differences that may exist in their vibration energies. Such measurements may be significant for our understanding of why our universe is full of matter, yet barely contains any antimatter."

From Science Daily

It can shed light on 'antimatter' which existed at the beginning of the Universe, and studying it could revolutionise physics, cancer treatment, and maybe even space travel.

From BBC

"It is the perfect atom to do experiments with antimatter."

From BBC