catenoid

(from the article `catenary`) ...by the focus of a parabola as it rolls along a straight line is a catenary. The surface of revolution generated when an upward-opening catenary is ...
Found on http://www.britannica.com/eb/a-z/c/36

catenoid

1. Like a chain, such as a chain of fungus spores or a colony of protozoa in which the individuals are joined end to end. ... Synonym: catenulate. ... 2. Surface of net zero curvature generated by the rotation of a catenary (curve of repose of a suspended chain); the interventricular septum of the heart in idiopathic hypertrophic subaortic stenosis...
Found on http://www.encyclo.co.uk/local/20973

catenoid

The surface of revolution produced when a catenary rotates about its central axis. The catenoid was first described by Leonhard Euler in 1740 and is the oldest known minimal surface (a shape of least area when bounded by a given closed space). It is the minimal surface connecting two parallel circle...
Found on http://www.daviddarling.info/encyclopedia/C/catenoid.html

catenoid

Type: Term Pronunciation: kat′ĕ-noyd Definitions: 1. Chainlike, such as a chain of fungus spores or a colony of bacteria in which the individuals are joined end to end. 2. Surface of net zero curvature generated by the rotation of a catenary (curve of repose of a suspended chain); the interventricular septum of the heart in idiopathic hy...
Found on http://www.medilexicon.com/medicaldictionary.php?t=15082
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