cone

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

{{senseid|en|geometric surface}} {{lb|en|geometry}} A [[surface of revolution]] formed by [[rotate|rotating]] a [[segment]] of a [[line]] around another line that intersects the first line. {{C|en|Surfaces}}
{{senseid|en|geometric solid}} {{lb|en|geometry}} A [[solid of revolution]] formed by rotating a [[triangle]] around one of its [[altitude]]s.
{{senseid|en|topology}} {{lb|en|topology}} A [[space]] formed by taking the [[direct product]] of a given space with a [[closed]] [[interval]] and [[identify]]ing all of one [[end]] to a [[point]].
Anything in the general [[shape]] of a cone.<ref name="Illustr. Oxford 1998">''The Illustrated Oxford Dictionary'', Oxford University Press, 1998</ref>
{{lb|en|anatomy}} Any of the small cone-shaped structures in the [[retina]].<ref name="Illustr. Oxford 1998"/>
{{lb|en|slang}} The [[bowl]] piece on a [[bong]].
{{lb|en|category theory}} 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''.)
{{lb|en|comptheory}} A [[set]] of [[formal language]]s with certain desirable [[closure]] properties, in particular those of the [[regular language]]s, the [[context-free]] languages and the [[recursively enumerable]] languages.

{{lb|en|transitive}} To fashion into the shape of a [[#Noun|cone]].
{{lb|en|intransitive}} To form a [[#Noun|cone]] shape.
{{lb|en|frequently followed by "off"}} To segregate or delineate an area using [[traffic cone]]s.
{{lb|en|transitive}} To place a [[traffic cone]] on (a [[statue]], etc.) as a [[prank]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.