Word Study
apothem
CIDE DICTIONARY
apothem, n. [Gr. + that which is placed, to place.].
- The perpendicular from the center to one of the sides of a regular polygon. [1913 Webster]
- A deposit formed in a liquid extract of a vegetable substance by exposure to the air. [1913 Webster]
OXFORD DICTIONARY
apothem, n. Geom. a line from the centre of a regular polygon at right angles to any of its sides.
Etymology
Gk apotithemi put aside (as APO-, tithemi place)
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