Path. Also extrophy. [mod. ad. assumed Gr. *ἐκστροφία, f. ἐκ-, ἐξ- out (see EX- pref.2) + στροφ- ablaut-form of the root of στρέφ-ειν to turn. Cf. Fr. exstrophie. The proper spelling according to the analogy of Gr. derivatives would be ecstrophy.] A turning inside out of a part; esp. a congenital malformation in which the bladder appears to be turned inside out.
1836. Todd, Cycl. Anat., I. 391/1. Extrophy of the bladder.
1875. H. C. Wood, Therap. (1879), 642. A case of exstrophy of the bladder.
