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单词 apothem
释义

apothemn.

/ˈapəθɪm/
Etymology: modern < Greek ἀποτιθέναι to set off, put aside, deposit, etc.; after θέμα, from the simple τιθέναι to place; compare French apothème.
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1. Mathematics. In a regular polygon: The perpendicular dropped from the centre upon one of the sides. Cf. offset n. 5c. (In modern dictionaries.)
2. ‘A term applied by Berzelius to the insoluble brown deposit which forms in vegetable extracts..exposed to the air.’ Watts Dict. Chem.
This entry has not yet been fully updated (first published 1885; most recently modified version published online December 2018).
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n.1885
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更新时间:2024/11/13 14:08:07