cone — English Dictionary

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 in the general shape of a cone. The fruit of a conifer or a similarly shaped fruit or flower head of certain other plants, such as banksias and proteas.

   Synonyms

   strobilusstrobile

5. Anything in the general shape of a cone. 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.

6. Anything in the general shape of a cone. An ice cream cone.

7. Anything in the general shape of a cone. A traffic cone.

8. Anything in the general shape of a cone. A traffic cone. A passenger on a cruise ship (that needs to be navigated around).

   Usage

   • broadly
   • Slang

9. Anything in the general shape of a cone. A cone-shaped cannabis joint.

   Usage

   • Slang

10. Anything in the general shape of a cone. A shell of the genus Conus, having a conical form.

11. Any of the small cone-shaped structures in the retina.

12. The bowl piece on a bong.

    Usage

    • Slang

13. The bowl piece on a bong. The process of smoking cannabis in a bong.

    Usage

    • Slang

14. 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.)

    Narrower terms

    limit

    Examples

    More examples (1)

    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.)

15. A set of formal languages with certain desirable closure properties, in particular those of the regular languages, the context-free languages and the recursively enumerable languages.

Verb

1. To fashion into the shape of a cone.

   Usage

   • Transitive

2. To form a cone shape.

   Usage

   • Intransitive

   Examples

   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.

3. To segregate or delineate an area using traffic cones.

   Examples

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

4. To place a traffic cone on (a statue, etc.) as a prank.

   Usage

   • Transitive

Noun

1. any cone-shaped artifact

   Broader terms

   artifactartefact

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

   Synonyms

   conoidcone shape

   Broader terms

   round shape

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

   Synonyms

   strobilusstrobile

   Broader terms

   reproductive structure

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

   Synonyms

   cone cellretinal cone

   Broader terms

   visual cell

Verb

1. make cone-shaped

   Broader terms

   bevelchamfer

   Examples

   cone a tire