parasitic twin

(redirected from Twin-reversed arterial perfusion)

par·a·sit·ic twin

the smaller of unequal conjoined twins.

parasitic twin

The smaller of a pair of conjoined twins, when there is a marked disparity in size.
See also: twin
References in periodicals archive ?
A rare complication of monochorionic twin pregnancy: Twin-reversed arterial perfusion (trap) sequence.