hard science
(rare) Alternative spelling of dickweed
simple past tense and past participle of subtract
(astronomy) Four stars which form a stellar system, such that they orbit the point of equilibrium of their gravitational fields; a quadruple star system.
(informal) Any of the natural and physical sciences that use the scientific method and experiments to test theories. Examples include mathematics, biology, physics, chemistry and geology.
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DiQt（ディクト）
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