(from the Greek ''κώνος'', Latin ''conu'') is a basic geometrical shape. It may also refer to:
- Cone (software) , a Text-based E-mail Client and News Client for Unix-like operating systems.
- Volcanic Cone , a mountain formed by material ejected from a volcanic vent
- Conifer Cone , a Seed -bearing organ on Conifer plants
- Cone Cell , in anatomy, a type of light-sensitive cell found along with rods in the retina of the eye
- Pyrometric Cone , in ceramic manufacture, a contolled mixture of minerals used to gauge the extent of firing
- Ice Cream Cone , an edible container in which Ice Cream is served, shaped like an inverted cone open at its top
- Cone is a colloquial Australian term for Cannabis , most commonly a Bong load or 'bowl' of cannabis.
- Traffic Cone , a brightly colored cone-shaped plastic object commonly used as a temporary traffic barrier or warning sign
- Cone, the name given to an Optical Fibre that tapers almost to a point
- Cone, a part of a Loudspeaker that moves the air, creating sound waves
- Cone Snail s, carnivorous Mollusc s of the family ''Conidae'', colloquially called "cones".
- Elizabethan Collar s, cone-shaped collars worn by pets
- A person acting Stupid . The reference is in relation to a Dunce Cap or being as smart as a Traffic Cone .
In :
The surface generated by a straight line, the generator, passing through a fixed point, the vertex, and moving along a fixed curve, the directrix.
A right circular cone.
- Cone (geometry) , the basic shape
- The Cone (topology) of an arbitrary Set ''X'' means the union of all Line Segment s connecting a fixed point to points of ''X''. For example, this coning operation will turn a Triangle into a Tetrahedron . The cone over an ''n''- Simplex is an (''n''+1)-simplex.
- The ''mapping cone'' of a map of Chain Complexes . (See Mapping Cone (homological Algebra) ).
- Projective Cone , a similar (but more general) concept in projective geometry
- Conical Surface , generated by a moving line with one fixed point
- Conic Section , any curve obtained by cutting a conical surface by an arbitrary plane
- Mapping Cone of a continuous map of topological spaces
- Mapping Cone (homological Algebra) of a continuous map of chain complexes
- Cone (linear Algebra) , in linear algebra, a subset of vector space closed under positive scaling
- --- Convex Cone , a cone that is closed under convex combinations
- Cone Graph , in graph theory, a graph with a universal vertex
- Central Projection , also called "conical projection", in geometry; see also Perspective Projection
- In cartography, however, a conic (or conical) projection maps the spherical surface of the Earth to a conical surface, that is then unrolled onto a plane; see Map Projection
- Cone (category Theory) , a family of morphisms resembling a geometric cone.
- A ''cone'' is an Abstract Family Of Languages that contains those Formal Language s having a Regular Grammar .
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