sef.əˈlop.ə.gəs

Definitions

1. noun

A conjoined twin where the heads are fused together, often with one head dominant and the other less developed.

“In the medical textbook, the doctor discussed the rare case of conjoined twins, specifically cephalopagus twins.”

2. adjective

Relating to or describing conjoined twins with fused heads.

“The hospital’s medical team specializes in treating cephalopagus twins and other rare birth defects.”