Cone (disambiguation)

A cone is a basic geometrical shape.

Cone may also refer to:

Mathematics

 * Cone (category theory)
 * Cone (formal languages)
 * Cone (graph theory), a graph in which one vertex is adjacent to all others
 * Cone (linear algebra), a subset of vector space
 * Mapping cone (homological algebra)
 * Cone (topology)
 * Conic bundle, a concept in algebraic geometry
 * Conical surface, generated by a moving line with one fixed point
 * Projective cone, the union of all lines that intersect a projective subspace and an arbitrary subset of some other disjoint subspace

Computing

 * Cone tracing, a derivative of the ray-tracing algorithm that replaces rays, which have no thickness, with cones
 * Second-order cone programming, a library of routines that implements a predictor corrector variant of the semidefinite programming algorithm
 * COnsole Newsreader And Emailer is a text based email client.

Astronomy

 * Cone Nebula (also known as NGC 2264), an H II region in the constellation of Monoceros
 * Ionization cone, cones of material extending out from spiral galaxies

Engineering and physical science

 * Antenna blind cone, the volume of space that cannot be scanned by an antenna
 * Carbon nanocones, conical structures which are made predominantly from carbon and which have at least one dimension of the order one micrometer or smaller
 * Cone algorithm identifies surface particles quickly and accurately for three-dimensional clusters composed of discrete particles
 * Cone beam reconstruction, a method of X-ray scanning in microtomography
 * Cone calorimeter, a modern device used to study the fire behavior of small samples of various materials in condensed phase
 * Cone clutch serves the same purpose as a disk or plate clutch
 * Cone of depression occurs in an aquifer when groundwater is pumped from a well
 * Cone penetration test (CPT), an in situ testing method used to determine the geotechnical engineering properties of soils
 * Cone Penetrometer apparatus, an alternative method to the Casagrande Device in measuring the Liquid Limit of a soil sample
 * Conical intersection of two potential energy surfaces of the same spatial and spin symmetries
 * Conical measure, a type of graduated laboratory glassware with a conical cup and a notch on the top to facilitate pouring of liquids
 * Conical mill (or conical screen mill), a machine used to reduce the size of material in a uniform manner
 * Conical pendulum, a weight (or bob) fixed on the end of a string (or rod) suspended from a pivot
 * Conical scanning, a system used in early radar units to improve their accuracy
 * Helical cone beam computed tomography, a type of three-dimensional computed tomography
 * Hertzian cone, the cone of force that propagates through a brittle, amorphous or cryptocrystalline solid material from a point of impact
 * Nose cone, used to refer to the forwardmost section of a rocket, guided missile or aircraft
 * Pyrometric cone, pyrometric devices that are used to gauge time and temperature during the firing of ceramic materials
 * Roller cone bit, a drill bit used for drilling through rock, for example when drilling for oil and gas
 * Skid cone, a hollow steel or plastic cone placed over the sawn end of a log
 * Speaker cone, the cone inside a loudspeaker that moves to generate sound
 * Spinning cone columns are used in a form of steam distillation to gently extract volatile chemicals from liquid foodstuffs

Biology and medicine

 * Cone cell, in anatomy, a type of light-sensitive cell found along with rods in the retina of the eye
 * Cone dystrophy, an inherited ocular disorder characterized by the loss of cone cells
 * Cone snail, a carnivorous mollusc of the family Conidae
 * Cone-billed tanager (Conothraupis mesoleuca), a species of bird in the family Thraupidae
 * Conifer cone, a seed-bearing organ on conifer plants
 * Growth cone, a dynamic, actin-supported extension of a developing axon seeking its synaptic target
 * Witch-hazel cone gall aphid (Hormaphis hamamelidis), a minuscule insect, a member of the aphid superfamily
 * Coning, a brain herniation in which the cerebellar tonsils move downwards through the foramen magnum

Geography

 * Cinder cone, a steep conical hill of volcanic fragments around and downwind from a volcanic vent
 * Cone (hill), a hill in the shape of a cone which may or may not be volcanic in origin
 * Dirt cone, a feature of a glacier or snow patch, in which dirt forms a coating insulating the ice below
 * Parasitic cone (or satellite cone), a geographical feature found around a volcano
 * Shatter cone, rare geological feature in the bedrock beneath meteorite impact craters or underground nuclear explosions
 * Volcanic cone, among the simplest volcanic formations in the world
 * Lambert conformal conic projection (LCC), a conic map projection, which is often used for aeronautical charts

Places

 * Cone (Phrygia), a town and bishopric of ancient Phrygia
 * Cone, Michigan, an unincorporated community in Michigan
 * Cone, Texas, an unincorporated community in Crosby County, Texas, United States
 * Cone Islet, a small granite island in south-eastern Australia
 * Conical Range, a small mountain range in southwestern British Columbia, Canada, between Seymour Inlet and Belize Inlet

People

 * Bonnie Ethel Cone (1907–2003), American educator and founder of the University of North Carolina at Charlotte
 * Carin Cone (born 1940), American swimmer, Olympic medalist, world record holder, and gold medal winner from the Pan American Games
 * Chadrick Cone (born 1983), American football wide receiver for the Georgia Force in the Arena Football League
 * Cindy Parlow Cone (born 1978), American soccer player and coach
 * Cone sisters, Claribel Cone (1864–1929), and Etta Cone (1870–1949), collectors and socialites
 * David Cone (born 1963), former Major League Baseball pitcher
 * Edward T. Cone (1917–2004), American music theorist and composer
 * Fairfax M. Cone (1903–1977), director of the American Association of Advertising Agencies
 * Fred Cone (baseball) (1848–1909), pioneer professional baseball player
 * Fred Cone (American football) (1926–2021), former professional American football running back
 * Fred P. Cone (1871–1948), twenty-seventh governor of Florida (Frederick Preston)
 * Jason McCaslin (born 1980), nicknamed Cone, bassist for the Canadian band Sum 41
 * James Hal Cone (1938–2018), advocate of Black liberation theology
 * John Cone (born 1974), American professional wrestling referee
 * John J. Cone, the fourth Supreme Knight of the Knights of Columbus from 1898 to 1899
 * Mac Cone (born 1952), Canadian show jumper
 * Martin Cone (1882–1963), 6th president of St. Ambrose College from 1930 to 1937
 * Marvin Cone (1891–1965), American painter
 * Reuben Cone (1788–1851), pioneer and landowner in Atlanta, Georgia
 * Robert W. Cone (1957-2016), major general in the United States Army, and Special Assistant to the Commanding General of TRADOC
 * Sara Cone Bryant (1873–?), author of various children's book in the early 20th century
 * Spencer Cone Jones (1836–1915), President of the Maryland State Senate, Mayor of Rockville, Maryland
 * Spencer Houghton Cone (1785–1855), American Baptist minister and president of the American and Foreign Bible Society
 * Tim Cone (born 1957), American basketball coach

Other uses

 * Conical Asian hat, a simple style of straw hat originating in East and Southeast Asia
 * Ice cream cone, an edible container in which ice cream is served, shaped like an inverted cone open at its top
 * Snow cone, a dessert usually made of crushed or shaved ice, flavored with sweet, usually fruit-flavored, brightly colored syrup
 * Traffic cone, a brightly colored cone-shaped plastic object commonly used as a temporary traffic barrier or warning sign
 * USS Cone (DD-866), a Gearing-class destroyer of the United States Navy
 * Elizabethan collar or e-collar, a device to keep an animal from licking or biting itself
 * To locate an aircraft using a searchlight
 * Cone Mills Corporation, a textile manufacturer