Etymology

Noun

1. A surface of revolution formed by rotating a segment of a line around another line that intersects the first line.
2. A solid of revolution formed by rotating a triangle around one of its altitudes.
3. A space formed by taking the direct product of a given space with a closed interval and identifying all of one end to a point.
4. Anything shaped like a cone.
5. The fruit of a conifer.
6. An ice cream cone.
7. A unit of volume, applied solely to marijuana and only while it is in a smokable state; roughly 1.5 cubic centimetres, depending on use.
8. Any of the small cone-shaped structures in the retina.

Synonyms

• (geometry): conical surface
• (ice cream cone): cornet, ice cream cone

Related terms

• coign
• coin

• quoin
• cuneiform

Verb

1. To fashion into the shape of a cone.