تعريف overcontact binary system في الإنجليزية الإنجليزية القاموس.
(Bilgisayar) A close binary system in which each star has filled and expanded well beyond its Roche lobe. The system therefore consists of two stellar cores surrounded by a common, dumbbell-shaped convective envelope. Such a system is often an eclipsing binary of the W Ursae Majoris type. See also Common Envelope Binary