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  1. apothem

    • IPA[ˈapəθɛm]

    英式

    • n.
      a line from the centre of a regular polygon at right angles to any of its sides.
    • noun: apothem, plural noun: apothems

    • 更多解釋
    • IPA[ˈapəˌTHem]

    美式

    • n.
      a line from the center of a regular polygon at right angles to any of its sides.

    Oxford American Dictionary