cone

To fashion into the shape of a cone.

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.

    Synonyms: strobilus strobile

    1. The fruit of a conifer or a similarly shaped fruit or flower head of certain other plants, such as banksias and proteas.

    2. 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.

    3. An ice cream cone.

    4. A traffic cone.

    5. A traffic cone.

      (slang, by extension) A passenger on a cruise ship (that needs to be navigated around).

    6. (slang) A cone-shaped cannabis joint.

    7. A shell of the genus Conus, having a conical form.

  5. Any of the small cone-shaped structures in the retina.
  6. The bowl piece on a bong.

    1. (slang) The process of smoking cannabis in a bong.

  7. 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...

    Hyponyms: limit

  8. 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.

Origin

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.

Forms

cones

Synonyms

conical surface cornet ice cream cone

Related

coign coin cuneiform quoin quean queen

Derived

air cone anterocone berry-cone bicone bristlecone choose cone cinder cone circular cone cocone conal conebill cone biopsy cone bush cone cabbage cone cell cone connector cone flower cone-flower coneflower Conehead conehead cone-headed coneheaded cone-in-cone

Verb

  1. To fashion into the shape of a cone.
  2. 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. - 1971, United States. Congress. House Appropriations, Department of the Interior and...
  3. 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 - 2006, Great Britain: Department for Transport, “D5 Single Carriageway Roads”, in Traffic...

Forms

cones coning coned