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Conoid Adjective Co·Noid  Shaped Noun Etymology  Greek  Straight

Title conoid
Text
Merriam-Webster's Collegiate Dictionary
co·noid

 \\ˈkō-ˌnȯid\\ adjective
or co·noi·dal 
 \\kō-ˈnȯi-dəl\\
 DATE  1570
: shaped like or nearly like a cone
    conoid shells
    conoid pottery
• conoid noun
Webster's Third New International Dictionary, Unabridged
co·noid
I. \ˈkōˌnȯid, ˈkäˌn-\ noun
(-s)
Etymology: Greek kōnoeides small cone, from neuter of kōnoeidēs, adjective
1. mathematics : a surface generated by a straight line that is perpendicular to and intersects a fixed straight line l, is revolved about l, and at the same time is translated along l
2. : something that has a conoidal form (as a rifle bullet)
II. adjective
Etymology: Greek kōnoeidēs conical, from kōn- con- (II) + -oeidēs -oid
: shaped like or nearly like a cone : 
conoidal

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