A philosophical or scientific system based on the theory that matter is composed of indivisible atoms.
From atomism (from Greek atomismos) + -ism (suffix for doctrines or practices). This variant emphasizes the '-ic' form of the base word before adding the -ism suffix.
Atomicism connects ancient Greek philosophy with modern science—Democritus predicted atoms 2,400 years ago with pure logic, and he was right, but nobody could prove it until microscopes and experiments existed.
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