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Webster 1913 Edition

Cone

‖

Cone

(kōn?)
,
Noun.
[L.
conus
cone (in sense 1), Gr.
κῶνος
; akin to Skr.
çana
whetstone, L.
cuneus
wedge, and prob. to E.
hone
. See
Hone
,
Noun.
]
1.
(Geom.)
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.
2.
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
.
Now had Night measured with her shadowy
cone

Half way up hill this vast sublunar vault.
Milton.
3.
(Bot.)
The fruit or strobile of the
Coniferæ
, as of the pine, fir, cedar, and cypress. It is composed of woody scales, each one of which has one or two seeds at its base.
4.
(Zool.)
A shell of the genus
Conus
, having a conical form.
Cone of rays
(Opt.)
,
the pencil of rays of light which proceed from a radiant point to a given surface, as that of a lens, or conversely.
–
Cone pulley
.
See in the Vocabulary.
–
Oblique cone
or
Scalene cone
,
a cone of which the axis is inclined to the plane of its base.
–
Eight cone
.
See
Cone
, 1.

Cone

(kōn)
,
Verb.
T.
To render cone-shaped; to bevfl like whe circwlar segoent of a cone;
as, to
cone
the tires of car wheels
.

Webster 1828 Edition

Cone

CONE

,
Noun.
[It coincides in radical sense with the root of can and begin.]
1.
A solid body or figure having a circle for its base, and its top terminated in a point or vertex, like a sugar loaf.
2.
In botany, the conical fruit of several evergreen trees, as of the pine, fir, cedar, and cypress. It is composed of woody scales, usually opening , and has a seed at the base of each scale.
A cone of rays, in optics, includes all the rays of light which proceed from a radiant point and fall upon the surface of a glass.
A right cone, is when its axis is perpendicular to its base, and its sides equal. It is formed by the revolution of a right-angle plane triangle about one of its sides.
A scalene cone, is when its axis is inclined to its base and its sides unequal.

Definition 2024

cone

cone

See also: cône and c’óne

English

Noun

cone ‎(plural cones)

  1. (geometry) A surface of revolution formed by rotating a segment of a line around another line that intersects the first line.
  2. (geometry) A solid of revolution formed by rotating a triangle around one of its altitudes.
  3. (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.
  4. Anything shaped like a cone.[1]
  5. The fruit of a conifer.[1]
  6. An ice cream cone.[1]
  7. A traffic cone
  8. 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.
  9. Any of the small cone-shaped structures in the retina.[1]
  10. (slang) The bowl piece on a bong.
  11. (slang) The process of smoking cannabis in a bong.
  12. (slang) A cone-shaped cannabis joint.
  13. (slang) A passenger on a cruise ship (so-called by employees after traffic cones, from the need to navigate around them)
  14. (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.)
  15. A shell of the genus Conus, having a conical form.
  16. 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.

Synonyms

Translations

Derived terms

Related terms

See also

Verb

cone ‎(third-person singular simple present cones, present participle coning, simple past and past participle coned)

  1. (pottery) To fashion into the shape of a cone.
  2. (frequently followed by "off") To segregate or delineate an area using traffic cones
    • 2006, Great Britain: Department for Transport, “D5 Single Carriageway Roads”, in Traffic Signs Manual, Part 1, The Stationery Office, ISBN 9780115527388, page 140:
      The area occupied by the works should be coned off and the usual advance warning signs should be provided on all approaches

References

  1. 1 2 3 4 The Illustrated Oxford Dictionary, Oxford University Press, 1998

Anagrams

Latin

Noun

cōne

  1. vocative singular of cōnus

References

Portuguese

Etymology

1560s, from Middle French cone (16c.) or directly from Latin conus "a cone, peak of a helmet," from Greek konos "cone, spinning top, pine cone," perhaps from PIE root *ko- "to sharpen" (cognates: Sanskrit sanah "whetstone," Latin catus "sharp," Old English han "stone").

Noun

cone m (plural cones)

  1. (geometry, etc.) cone (conical shape)

Etymology

From Middle French cone, from Latin conus ‎(“cone, wedge, peak”), from Ancient Greek κῶνος ‎(kônos, “cone, spinning top, pine cone”)

Pine cone (5).

Pronunciation

  • Rhymes: -əʊn
A cone (1)-(3)

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