Look up quad or quadri- in Wiktionary, the free dictionary.

Quad as a word or prefix usually means four. It may refer to:

Government

• Quadrilateral Security Dialogue, a strategic security dialogue between Australia, India, Japan, and the United States
• Quadrilateral group, an informal group that includes the trade spokesmen of the United States, Japan, Canada, and the European Union
• Quad Cities, a group of five cities straddling the boundary between the U.S. states of Iowa and Illinois
• The "Quad", the senior members of the Cameron–Clegg coalition government in the United Kingdom from 2010 to 2015

Art and entertainment

• Matthias Quad (1557–1613), engraver and cartographer
• Quad (film), 2015
• Quad (music), a musical project by Gary Ramon
• Quad (play), by Samuel Beckett
• The Quad (TV series), 2017
• Quad (arts centre), in Derby, United Kingdom
• Quad Cinema, art house in New York City, New York
• Quad (company), formerly Quad/Graphics, an international marketing company
• Quadruple combination, the four books that comprise the canon of the LDS church

Medicine and anatomy

• Quadriplegic, a person paralyzed in all four limbs
• Quadriceps femoris, a large leg muscle group
• Quadruplets, four children from a multiple birth

Sports

• Quad (figure skating), a figure skating jump with four revolutions
• Quad scull, a boat configuration of four rowers
• Quad skates, roller skates with two wheels on each of two axles
• Quad, one of the divisions in wheelchair tennis
• Quadruple-double, a statistical accomplishment in basketball
• Quadrennium, the 4-year training cycle between Olympic games

Transportation

• Quad bike or all-terrain vehicle, a vehicle that travels on low-pressure tires
• Quad, a tandem bicycle with four seats
• Quadracycle, a four-wheeled human-powered land vehicle
• Jeffery Quad, a four-wheel drive truck
• Quadcopter, a four-rotor helicopter
• Quad, a chairlift in skiing which carries four persons
• Quad, or railroad speeder, a motorized vehicle used for maintenance on railroads
• Quad (rocket), an autonomous rocket by Armadillo Aerospace

Technology

• QUAD (cipher), a stream cipher
• QUaD, a microwave telescope at the South Pole
• Quad antenna, a directional antenna
• Quad Electroacoustics, a British manufacturer of audio equipment
• Quadraphonic sound, four-channel sound
• Quadruplex videotape, video tape format
• Quad Flat Package, a type of package for surface mounted integrated circuit
• Star quad cable, four insulated conductors twisted together

Other uses

• Quad (unit), unit of energy, short for quadrillion, 10¹⁵ BTU
• Quadrangle (architecture), a space or courtyard bordered by buildings
• Quad (geography), a United States Geological Survey topographical map
• Quad (typography), a spacer used in letterpress type
• Quadrilateral, in geometry
• Quad poster, a common UK size of film poster
• Quadrat, in ecology, a small study area or a frame used to define it
• Quadrupel, a Belgian beer
• The Quad Casino (now The Linq), on the Las Vegas Strip
• Four-of-a-kind in poker
• Sako Quad, a Finnish bolt-action rifle

See also

• Quadrangle (disambiguation)
• All pages with titles containing Quad

This disambiguation page lists articles associated with the title Quad.
If an internal link led you here, you may wish to change the link to point directly to the intended article.