apothem

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noun ap·o·them \ˈa-pə-ˌthem\

Definition of apothem

  1. :  the perpendicular from the center of a regular polygon to one of the sides

Origin and Etymology of apothem

International Scientific Vocabulary apo- + -them (from Greek thema something laid down, theme)


First Known Use: 1813

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contemplative of or relative to the past

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