■ noun 'kwɒdrət (also ~ bone ) Zoology a squarish bone in the skull of a bird or reptile, with which the jaw articulates.
■ adjective 'kwɒdrət roughly square or rectangular.
■ verb kwɒ'dreɪt , 'kwɒdreɪt (usu. ~ with ) archaic conform.
Origin
ME: from L. quadrat- , quadrare 'make square', from quattuor 'four'.