dipygus

dipygus

 [di-pi´gus]
a malformed fetus with a double pelvis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

di·py·gus

(dī-pī'gŭs, dip'ē-gŭs),
Conjoined twins with a single head and thorax and the pelvis and lower extremities duplicated; when the duplications of the lower parts are symmetric, usually called duplicitas posterior. See: conjoined twins.
[G. di-, two, + pyge, buttocks]
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
According to location, polymelia is named as notomelia, cephalomelia, thoracomelia and dipygus or pygomelia where the extra limbs are attached in region of embryonic notochord on head, on thorax to margin of scapula of normal limb and to pelvis respectively (Denholm, 2011).