cone

cone

noun \ˈkōn\

Definition of CONE

1

: a solid having a circular base and sides that slope evenly to a point

2

a : any of the conical photosensitive receptor cells of the vertebrate retina that function in color vision—compare rod b : any of a family (Conidae) of numerous somewhat conical tropical gastropod mollusks that include a few highly poisonous forms—see conus

3

: a cusp of a tooth especially in the upper jaw