quad

noun (1)

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\ ˈkwäd

Definition of quad

(Entry 1 of 8)

: quadrangle

quad

noun (2)

Definition of quad (Entry 2 of 8)

: a type-metal space that is one en or more in width

quad

verb

quadded; quadding

Definition of quad (Entry 3 of 8)

transitive verb

: to fill out (something, such as a typeset line) with blank space

quad

noun (3)

plural quads

Definition of quad (Entry 4 of 8)

1 : quadruplet

2 : a ski lift that holds four people

3 : a jump (as in figure skating or skiing) that consists of at least four but less than five revolutions Last month Leaver announced that Boitano would not try the jump for which he is best known, the quadruple toe loop, at the Olympics. Never performed successfully in competition, the quad has become the slippery grail of skating.— Jill Smolowe

4 or less commonly quad bike : a four-wheeled all-terrain vehicle

quad

adjective

Definition of quad (Entry 5 of 8)

1 : having or composed of four items or elements : quadruple sense 1 The F/A-18 flight-control system … is characterized by quad redundancy, which means that there are essentially four levels of sensing and actuation for each control surface. — McGraw-Hill Yearbook Of Science And Technology Quad skates are roller skates that have four wheels arranged in two rows, while inline skates have them in one line.— Jenee Osterheldt

2 : quadraphonic Domestic quad listening needs two additional loudspeakers over stereo, and two more amplifiers, plus the black box which allocates some of the sounds to the rear left/right, and others to the front left/right.— George Steedman

quad

noun (4)

Definition of quad (Entry 6 of 8)

: quadraphonic sound

quad

noun (5)

Definition of quad (Entry 7 of 8)

: a unit of energy equal to one quadrillion British thermal units

quad

noun (6)

plural quads

Definition of quad (Entry 8 of 8)

informal

: the greater extensor muscle of the front of the thigh that is divided into four parts : quadriceps —usually plural "Usually after a heptathlon I can tell if I'm not going to do well jumping. My quads get tired."— Jackie Joyner-KerseeDick Williams, Seattle manager, on shortstop Spike Owen's injured quads: "I never had any quads when I played." — Sports Illustrated