cone

円すい、松かさ ◇Gk.konos、L.conus

(noun) Mathematics The surface generated by a straight line, the generator, passing through a fixed point, the vertex, and moving along a fixed curve, the directrix.
(noun) Mathematics A right circular cone.
(noun) The figure formed by a cone, bound or regarded as bound by its vertex and a plane section taken anywhere above or below the vertex.
(noun) Something having the shape of this figure: "the cone of illuminated drops spilling beneath a street lamp” ( Anne Tyler).
(noun) Botany A unisexual reproductive structure of gymnospermous plants such as conifers and cycads, typically consisting of a central axis around which there are scaly, overlapping, spirally arranged sporophylls that develop pollen-bearing sacs or naked ovules or seeds.

Ring cone system: A variation on the cone drive system is called the ring cone system - the motor has a metal cone mounted on its shaft, and the whole motor can be moved in and out, so that the cone drives a rubber ring connected to the wheelhead at variable speeds.

conic

円すい(形)の

円すい形の

針葉樹、球果植物