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nounmatter consisting of elementary particles that are the antiparticles of those making up normal substancestype of:
Definition that contains antimatter
- anderson United States physicist who discovered antimatter in the form of an antielectron that is called the positron (1905-1991)
- dirac English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984)
- carl anderson United States physicist who discovered antimatter in the form of an antielectron that is called the positron (1905-1991)
- carl david anderson United States physicist who discovered antimatter in the form of an antielectron that is called the positron (1905-1991)
- paul adrien maurice dirac English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984)