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円環体 (えんかんたい) Japanese meaning | Kotomora

円えん環かん体たい

え

ん

か

ん

た

い

Meanings

1

noun

solid torus

geometry

Technical term in geometry for a solid torus, a three-dimensional shape formed by revolving a disk around a coplanar axis.

円えん環かん体たいの体たい積せきを計けい算さんする公こう式しきを覚おぼえた。
I memorized the formula for calculating the volume of a solid torus.

Kanji

円circle, yen, round
環ring, circle, loop
体body, substance, object

Etymology

Compound of 円環 (enkan, 'circle' or 'ring') and 体 (tai, 'body'), literally 'ring body'. The exact historical derivation is uncertain; the term is a modern technical coinage for the geometric solid torus.