twin fetuses joined laterally at the thorax.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Conjoined twins that are united laterally at the thorax; the zone of union may also involve the neck and jaws. See: conjoined twins.
[hemi- + G. pagos, something fixed]
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