apothem

From Ancient Greek ἀπόθεμα (apóthema, “deposit”), from ἀπό (apó, “off, away”) + θέμα (théma, “that which is laid down”).

• enPR: ăpə-thĕm′
• IPA^(key): /ˈæp.ə.θɛm/

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• Homophone: apothegm

apothem (plural apothems)

1. (geometry) The perpendicular distance from the center of a circle to a chord of the same circle.
2. (geometry) The distance from the center of a regular polygon perpendicular to one of its sides (a special case of the above).

• mephato