1. In object-oriented programming, a variable or routine that is part of a class. See also C++, class.
2. A value that is part of a set data structure. See also set2 (definition 1).

ETYM Old Eng. membre, French membre, from Latin membrum; cf. Goth. mimz flesh, Skr. mamsa.
1. An organization that is a member of another organization (especially a state that belongs to a group of nations).
2. Anything that belongs to a set or class.
3. One of the persons who compose a social group (especially individuals who have joined and participates in a group organization).