| 释义 |
apothem|ˈæpəθɪm|
[mod. f. Gr. ἀποτιθέ-ναι to set off, put aside, deposit, etc.; after θέµα, from the simple τιθέναι to place; cf. Fr. apothème.]
1. Math. In a regular polygon: The perpendicular dropped from the centre upon one of the sides. Cf. off-set. (In mod. Dicts.)
2. ‘A term applied by Berzelius to the insoluble brown deposit which forms in vegetable extracts..exposed to the air.’ Watts Dict. Chem. |