Dif"form` (?), a. [Cf. F. difforme, fr. L. dif- = dis- + forma form. Cf. Deform.]
Irregular in form; -- opposed to uniform; anomalous; hence, unlike; dissimilar; as, to difform corolla, the parts of which do not correspond in size or proportion; difform leaves.
The unequal refractions of difform rays.
Sir I. Newton.
© Webster 1913.