semidetached binary


Also found in: Encyclopedia, Wikipedia.
Related to semidetached binary: Contact binary

semidetached binary

n
(Astronomy) a pair of stars that are so close together that mass transfer occurs from one to the other
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014