Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Shaped like a cone.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Shaped like a cone; conical
  • adj. A Catalan surface all of whose rulings intersect some fixed line.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Resembling a cone; conoidal.
  • n. Anything that has a form resembling that of a cone.
  • n.
  • n. A solid formed by the revolution of a conic section about its axis; ; -- more commonly called paraboloid, ellipsoid, etc.
  • n. A surface which may be generated by a straight line moving in such a manner as always to meet a given straight line and a given curve, and continue parallel to a given plane.

from The Century Dictionary and Cyclopedia

  • Having the form of a cone; conoidal.
  • n. In geometry: A solid formed by the revolution of a conic section about its axis. A skew surface which may be generated by a straight line moving in such a manner as to touch a straight line and curve, and continue parallel to a given plane. A surface generated by the revolution of an arc of a circle about its sine.
  • n. In anatomy, the conarium or pineal body.
  • In conchology, resembling or having the characters of the Conidæ.
  • n. A gastropod of the family Conidæ.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a shape whose base is a circle and whose sides taper up to a point

Etymologies

cone +‎ -oid (Wiktionary)

Examples

  • That the center of gravity of a segment of a right conoid which is cut off by a plane perpendicular to the axis, lies on the straight line which is the axis of the segment divided in such a way that the portion at the vertex is twice as great as the remainder, may be perceived by our method in the following way:

    Geometrical Solutions Derived from Mechanics; a Treatise of Archimedes

  • The Hindus I believe to have been the first who symbolised by an equilateral triangle their peculiar cult, the Yoni-Linga: in their temple architecture, it became either a conoid or a perfect pyramid.

    Personal Narrative of a Pilgrimage to Al-Madinah and Meccah

  • The only large building is the Jami or Cathedral, a long barn of poverty-stricken appearance, with broken-down gates, and two white-washed minarets of truncated conoid shape.

    First footsteps in East Africa

  • On these heights, which are mostly conoid with rounded tops, joined by ridges and saddlebacks, various kinds of Acacia cast a pallid and sickly green, like the olive tree upon the hills of Provence.

    First footsteps in East Africa

  • Frequent ant-hills gave an appearance of habitation to a desert still covered with the mosques and tombs of old Adel; and the shape of the country had gradually changed, basins and broad slopes now replacing the thickly crowded conoid peaks of the lower regions.

    First footsteps in East Africa

  • Down the mountain-slopes, like a whorl of shining dust blown before the wind, a crimson, conoid cloud came dancing.

    The Bloody Crown of Conan

  • Dazedly he saw a crimson conoid cloud spinning up and over the mountain slopes.

    The Bloody Crown of Conan

  • Down the mountain slopes, like a whirl of shining dust blown before the wind, a crimson, conoid cloud came dancing.

    The Conan Chronicles

  • · The conoid unit has a shape which makes it suitable for use as roofing as well as wall components.

    Chapter 10

  • On this the gypsum-sisal mortar is spread to form the conoid.

    Chapter 10

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