I. ˈkōn noun
Etymology: Middle French or Latin; Middle French, from Latin conus, from Greek kōnos
Date: 1545
1.
a. : a solid generated by rotating a right triangle about one of its legs — called also right circular cone
b. : a solid bounded by a circular or other closed plane base and the surface formed by line segments joining every point of the boundary of the base to a common vertex — see volume table
c. : a surface traced by a moving straight line passing through a fixed vertex
2.
a. : a mass of ovule-bearing or pollen-bearing scales or bracts in most conifers or in cycads that are arranged usually on a somewhat elongated axis
b. : any of several flower or fruit clusters suggesting a cone
3. : something that resembles a cone in shape: as
a. : any of the conical photosensitive receptor cells of the vertebrate retina that function in color vision — compare rod 3
b. : any of a family (Conidae) of tropical marine gastropod mollusks that inject their prey with a potent toxin
c. : the apex of a volcano
d. : a crisp usually cone-shaped wafer for holding ice cream
[
cone 2a: 1 Sitka spruce, 2 cryptomeria, 3 giant sequoia, 4 white spruce, 5 redwood, 6 lodgepole pine, 7 Douglas fir, 8 bald cypress, 9 jack pine
]
II. transitive verb
( coned ; con·ing )
Date: 1845
1. : to make cone-shaped
2. : to bevel like the slanting surface of a cone
cone a tire