cone

Meanings

1. 1
   verb

   to make cone-shaped

   cone a tire

2. 2
   noun

   An object V together with an arrow going from V to each object of a diagram such that for any arrow A in the diagram, the pair of arrows from V which subtend A also commute with it. (Then V can be said to be the cone’s vertex and the diagram which the cone subtends can be said to be its base.)

   A cone is an object (the apex) and a natural transformation from a constant functor (whose image is the apex of the cone and its identity morphism) to a diagram functor. Its components are projections from the apex to the objects of the diagram and it has a “naturality triangle” for each morphism in the diagram. (A “naturality triangle” is just a naturality square which is degenerate at its apex side.)

3. 3
   verb

   To form a cone shape.

   Under the old method the material coned at the bottom of the borehole and as a result it would not go under houses and buildings.

4. 4
   verb

   To segregate or delineate an area using traffic cones.

   The area occupied by the works should be coned off and the usual advance warning signs should be provided on all approaches

5. 5
   noun

   any cone-shaped artifact

6. 6
   noun

   a visual receptor cell in the retina that is sensitive to bright light and to color

7. 7
   noun

   cone-shaped mass of ovule- or spore-bearing scales or bracts

8. 8
   noun

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

Etymology

From Middle English cone (“corner, angle”) and conoun (“cone”), from Medieval Latin cōnus, cōnon (“cone, wedge, peak”), from Ancient Greek κῶνος (kônos, “cone, spinning top, pine cone”). Reinforced by Middle French cone, from the same Graeco-Latin source.