Definition of "quad"
quad1
/kwɑd/
noun
plural quads
quad2
/kwɑd/
noun
plural quads
(informal) A quadrangle (quadrangular courtyard).
(informal) A quadruplet (infant).
(informal, computer graphics) A quadrilateral.
(informal) The quadriceps muscle.
(informal) A quadriplegic person.
(informal) Quadruplex videotape.
(informal) A quadcopter.
quad3
/kwɑd/
noun
plural quads
Abbreviation of quadrillion BTU. (1015 BTU)
quad4
/kwɑd/
noun
plural quads
verb
third-person singular simple present quads, present participle quadding, simple past and past participle quadded