conjoined twins


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con·joined twins

monozygotic twins with varying extent of union and different degrees of residual duplication. The various types of union are named by the use of a prefix designating the region that is united and adding the suffix -pagus, meaning joined (for example, craniopagus [united by the heads], thoracopagus [united in thoracic region]); the various types of residual duplication are named by designating the parts duplicated and adding the suffix -didymus, or -dymus, meaning twin (for example, cephalodidymus, cephalodymus).

conjoined twins

two fetuses developed from the same ovum who are physically united at birth. The defect ranges from a superficial anatomical union of varying extent between equally or nearly equally formed fetuses to one in which only a part of the body is duplicated or in which a small, incompletely developed fetus, or parasite, is attached to a more fully formed one, the autosite. Conjoined twins result when separation of the blastomeres in early embryonic development does not occur until a late cleavage phase and is incomplete, causing the fused condition. Viability depends on the extent of the fusion and the degree of development of the fetuses. See also Siamese twins.
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Conjoined twins at 12 weeks of development

con·joined twins

(kon-joynd' twinz)
Monozygotic twins with varying extent of union and different degrees of residual duplication. The various types of union are named by the use of a prefix designating the region that is united and adding the suffix -pagus, meaning fused (e.g., craniopagus, thoracopagus); the various types of residual duplication are named by designating the parts duplicated and adding the suffix -didymus, or -dymus, meaning twin (e.g., cephalodidymus, cephalodymus).

conjoined

joined together.

conjoined monsters
two deformed fetuses fused together.
conjoined twins
see conjoined twins.
References in periodicals archive ?
Shaily and Shilpa, conjoined twins born with fused abdomen and chest, were successfully separated by the doctors at All India Institute of Medical Sciences on May 23.
For numerous reasons, conjoined twins have long been of medical, historical, and legendary interest.
In a bold move, Dreger suggests, I think correctly, that some of our uneasiness with conjoined twins comes from imagining the ways in which they might be sexual.
The babies saw Laura Williams, 18, become the UK's youngest mother of conjoined twins.
The detectives go undercover at a travelling circus as a knives-of-death act to investigate the murder of conjoined twins, and Brennan is forced to take to the high wire.
An ultrasound examination revealed probable thoraco-omphalopagus conjoined twins and polyhydramnios.
It was the 21st successful operation to separate conjoined twins at the facility.
SALAH AL-DIN / Aswat al-Iraq: A team of surgeons at the Tikrit Teaching Hospital on Saturday separated conjoined twins fused at the thorax, diaphragm, heart and liver in a landmark operation considered the first ever in Iraq, a medic said.
THE mum and dad of conjoined twins yesterday paid tribute to the "little fighters".
Conjoined twins remain extremely rare, occurring once in every 200,000 births when a single fertilised egg splits to form twins but the separation is incomplete.