quad- Prefix List

Terms	Definitions
quad-	four
quadrangle	a four-sided enclosure, usually surrounded by buildings
quadrant	one out of four equal parts of a circle; one section of a four-section coordinate grid
quadrennial	happening every four years
quadriceps	a muscle group consisting of four muscles that is located along the front of the thigh
quadrilateral	a plane figure in geometry that has four sides (including square, rectangle, rhombus, parallelogram, and trapezoid)
quadrilingual	the ability to speak four languages
quadrisect	to cut or divide into four equal parts
quadruped	an animal with four feet
quadruple	to create four times as much or as many of something
quadruplet	a collection or group of four; one of four babies born from the same mother at the same time