antimatter – מילון אנגלי-אנגלי
antimatter
n.
matter composed of counterparts of ordinary matter (Physics)
Antimatter
antimatter
Noun
1. matter consisting of elementary particles that are the antiparticles of those making up normal matter
(hypernym) substance, matter
(substance-meronym) antiparticle
Antimatter
A particle with precisely opposite properties to those of its matter counterpart. For example, the antimatter counterpart of an electron, known as a positron, has a positive charge, equal in strength to the negative charge of the electron. It also has an opposite spin. Antimatter is created in a process known as pair production. When antimatter comes into contact with its matter counterpart, the two particles are instantly annihilated by having their rest mass turned into energy and released as two photons electromagnetic radiation. The universe is predominantly composed of matter, since the laws of physics state that matter is produced with a slight but calculable bias over antimatter.
antimatter