cyllosoma

One-sided congenital defect of the lower abdominal wall (eventration) with defective development of the corresponding lower limb. [G. kyllos, deformed, esp. clubfooted or bandylegged, + soma, body]

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cyl·lo·so·ma (sil″o-soґmə) [Gr. kyllos lame + soma] a fetus with lower lateral abdominal eventration and absence or imperfect development of the lower limb on the side having the eventration.