the geometrical surface generated by rotating a catenary about its axis
catenoid in American English
(ˈkætnˌɔid)
noun
Geometry
the surface generated by rotating a catenary about its axis of symmetry
Word origin
[1875–80; ‹ L catēn(a) a chain + -oid]This word is first recorded in the period 1875–80. Other words that entered Englishat around the same time include: graph, massage, musical chairs, neoclassic, slime mold-oid is a suffix meaning “resembling,” “like,” used in the formation of adjectives andnouns (and often implying an incomplete or imperfect resemblance to what is indicatedby the preceding element). Other words that use the affix -oid include: alkaloid, cardioid, cuboid, lithoid, planetoid