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conoid

[koh-noid] /ˈkoʊ nɔɪd/
adjective
1.
Also, conoidal. resembling a cone in shape; cone-shaped.
noun
2.
a geometrical solid formed by the revolution of a conic section about one of its axes.
Origin
1650-1660
1650-60; < Greek kōnoeidḗs. See cone, -oid
Related forms
conoidally, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for conoid
  • The parasite has a retractable structure called a conoid that makes this dent.
  • The top conoid-shaped section was designed to reflect sunlight early and late in the day to distant observers.
British Dictionary definitions for conoid

conoid

/ˈkəʊnɔɪd/
noun
1.
a geometric surface formed by rotating a parabola, ellipse, or hyperbola about one axis
adjective
2.
conical, cone-shaped
Derived Forms
conoidally, adverb
Word Origin
C17: from Greek kōnoeidēs, from kōnoscone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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