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apothem |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Apothem \Ap"o*them\, n. [Gr. ? + ? that which is placed, ? to place.] 1. (Math.) The perpendicular from the center to one of the sides of a regular polygon. 2. A deposit formed in a liquid extract of a vegetable substance by exposure to the air.