front 1 quadriceps | back 1 a muscle group consisting of four muscles located along the front of the thigh |
front 2 quadrilateral | back 2 a plane figure in geometry that has four sides |
front 3 quadrisect | back 3 to cut or divide into four equal parts |
front 4 quadruped | back 4 an animal with four feet |
front 5 quadruple | back 5 to create four times as much or as many of something |