(medicine) A deformed fetus having developed no heart, a stunted head, and a rudimentary thorax, but with a perfectly formed pelvis and contiguous parts, connected as a parasite to another fetus.

Of or pertaining to the parasitic protozoans of the suborder Acephalina

The congenital lack of a head and hands

Alternative form of acephalocheiria

The congenital lack of a head and thorax (in a parasitic twin)

The congenital lack of a head and a heart (in a parasitic twin)

The congenital lack of a head and spine

The congenital lack of most of the head (having only a mouth-like opening)

The congenital lack of a head and thorax

The congenital lack of a head (especially in a parasitic twin)