cone
UK /ˈkəʊn/ · US /ˈkoʊn/ noun, verb, proper noun
Forms cones coning coned
- noun (geometry) A surface of revolution formed by rotating a segment of a line around another line that intersects the first line.
- noun (geometry) A solid of revolution formed by rotating a triangle around one of its altitudes.
- noun (topology) 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.
- noun The fruit of a conifer or a similarly shaped fruit or flower head of certain other plants, such as banksias and proteas.
- noun 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.
- noun An ice cream cone.
- noun A traffic cone.
- noun (slang, by extension) A passenger on a cruise ship (that needs to be navigated around).
- verb (transitive) To fashion into the shape of a cone.
- verb (intransitive) To form a cone shape.
- verb (frequently followed by "off") To segregate or delineate an area using traffic cones.
- verb (transitive) To place a traffic cone on (a statue, etc.) as a prank.
- proper noun A surname.
- proper noun An unincorporated community in Milan Township, Monroe County, Michigan, United States.
- proper noun An unincorporated community in Crosby County, Texas, United States.
Synonyms
strobilus strobile cornet ice cream cone conical surface conoid cone shape cone cell retinal cone
Etymology
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.
Webster’s 1913
- noun A solid of the form described by the revolution of a right-angled triangle about one of the sides adjacent to the right angle; - -called also a right cone. More generally, any solid having a vertical point and bounded by a surface which is described by a straight line always passing through that vertical point; a solid having a circle for its base and tapering to a point or vertex.
- noun Anything shaped more or less like a mathematical cone; as, a volcanic cone, a collection of scoriæ around the crater of a volcano, usually heaped up in a conical form.
- verb To render coneshaped; to bevel like the circular segment of a cone; as, to cone the tires of car wheels.
- verb A friction clutch with conical bearing surfaces.
Etymology [L. conus cone (in sense 1), Gr. çana whetstone, L. cuneus wedge, and prob. to E. hone. See Hone, n.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “cone”, CC BY-SA 4.0. Details