cone

(noun) any cone-shaped artifact.

(noun) a shape whose base is a circle and whose sides taper up to a point. Synonyms: conoid, cone shape.

(noun) cone-shaped mass of ovule- or spore-bearing scales or bracts. Synonyms: strobilus, strobile.

(noun) a visual receptor cell in the retina that is sensitive to bright light and to color. Synonyms: cone cell, retinal cone.

(verb) make cone-shaped. Example: "Cone a tire."