analogue, analog

(an′ă-log″ )

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[Gr. analogos, analogy, proportion]

1. In biology, an organ in different species similar in function but different in structure, such as the wings of a fly and the wings of a bird.
2. In chemistry and pharmacology, a compound structurally similar to another but slightly different in composition.
3. Capability of representing an infinite number of values.

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