The Collaborative International Dictionary
cyclide
cyclide \cy"clide\ (s?"kl?d), n. [Gr. ky`klos circle.] (Geom.) A surface of the fourth degree, having certain special relations to spherical surfaces. The tore or anchor ring is one of the cyclides.
Wiktionary
cyclide
n. (context mathematics English) Any of a class of surfaces, described by quartic expressions, that are related to spherical surfaces
Usage examples of "cyclide".
We also met several other examples of the Splinter culture at the same time, including Mavra's wife, Cyclide, and his cousin, Cyolus Capra.