cassinoidn.

/ˈkasɪnɔɪd/

Etymology: < French cassinoide: see Cassinian adj. and -oid suffix.

Geometry.

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A curve which Cassini wished to substitute for the ellipse, in explanation of the planetary movements: an oval having two foci, such that the product of the focal radii of any point on the curve is constant (instead of their sum being constant as in the ellipse).

This entry has not yet been fully updated (first published 1888; most recently modified version published online June 2018).

单词	cassinoid
释义	cassinoidn. /ˈkasɪnɔɪd/ Etymology: < French cassinoide: see Cassinian adj. and -oid suffix. Geometry. Categories » A curve which Cassini wished to substitute for the ellipse, in explanation of the planetary movements: an oval having two foci, such that the product of the focal radii of any point on the curve is constant (instead of their sum being constant as in the ellipse). This entry has not yet been fully updated (first published 1888; most recently modified version published online June 2018). < n.
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