American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Shaped like a cone.
Century Dictionary and Cyclopedia
- Having the form of 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. If the conic section is a parabola, the resulting solid is a parabolic conoid, or paraboloid; if a hyperbola, the solid is a hyperbolic conoid, or hyperboloid; if an ellipse, an elliptic conoid, a spheroid, or an ellipsoid. But the term conoid is often used to include the hyperboloids and paraboloids and to exclude the spheroids. This is the meaning of the Greek word with Archimedes.
- 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.
- adj. Shaped like a cone; conical
- adj. geometry A Catalan surface all of whose rulings intersect some fixed line.
GNU Webster's 1913
- n. Anything that has a form resembling that of a cone.
- 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.
- adj. Resembling a cone; conoidal.
- n. a shape whose base is a circle and whose sides taper up to a point
- cone + -oid (Wiktionary)
“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:”
“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.”
“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.”
“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.”
“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.”
“Down the mountain-slopes, like a whorl of shining dust blown before the wind, a crimson, conoid cloud came dancing.”
“Dazedly he saw a crimson conoid cloud spinning up and over the mountain slopes.”
“Down the mountain slopes, like a whirl of shining dust blown before the wind, a crimson, conoid cloud came dancing.”
“· The conoid unit has a shape which makes it suitable for use as roofing as well as wall components.”
“On this the gypsum-sisal mortar is spread to form the conoid.”
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