::(2) : a complex of variable factors c : a state of being equated; specifically : a state of close association or identification <bring governmental enterprises and payment for them into immediate equation — R. G. Tugwell>
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::(2) : a [[complex]] of variable factors
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*2 a : a usually formal statement of the equality or equivalence of mathematical or logical expressions
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:c : a [[state]] of being equated; specifically : a state of close [[association]] or identification <bring governmental enterprises and payment for them into immediate equation — R. G. Tugwell>
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:b : an expression representing a chemical reaction quantitatively by means of chemical symbols
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*2 a : a usually [[formal]] statement of the [[equality]] or equivalence of [[mathematical]] or [[logical]] [[expressions]]
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:b : an expression representing a [[chemical]] reaction [[quantitatively]] by means of chemical [[symbols]]