out sister

out sister

n
(Ecclesiastical Terms) a member of a community of nuns who performs tasks in the outside world on behalf of the community
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Such natural wisdom comes from growing up with an out sister. Tatiana came out in her early 20s, when Eden and their brother, Sam, were both children.