—adj. esp. Anat. & Zool. square or rectangular (quadrate bone; quadrate muscle).
—n.
1 a quadrate bone or muscle.
2 a rectangular object.
—v.
1 tr. make square.
2 intr. & tr. (often foll. by with) conform or make conform.
Etymology: ME f. L quadrare quadrat- make square f. quattuor four
Useful english dictionary. 2012.