member: Meaning and Definition of

mem•ber

1. a person, animal, plant, group, etc., that is part of a society, party, community, taxon, or other body.
1. a member of Congress, esp. of the House of Representatives.
2. a member of the British Parliament, esp. of the House of Commons.
3. any member of a legislative body.
3. a part or organ of an animal body; a limb, as a leg, arm, or wing.
4. a structural entity of a plant body.
5. the penis.
6. a constituent part of any structural or composite whole, as a subordinate architectural feature of a building.
1. either side of an equation.
2. an element of a set.
8. a stratigraphic unit recognized within a formation, and mapped as such.

1. being a member of or having membership in an association, organization, etc.: member countries of the United Nations.