单词	catenoid
释义	catenoid /ˈkatənɔɪd / noun Geometry The surface generated by rotating a catenary about its horizontal axis.The catenoid is a minimal surface with ‘too much’ negative curvature.... Soap bubbles and cell membranes are often catenoids, and molecules may knit together to form helicoid surfaces, emblems of stable energy states. These catenoids are the first explicitly known discrete minimal surfaces besides the trivial plane. Origin Late 19th century: from Latin catena 'chain' + -oid.
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