9. member a stratigraphic unit recognized within a geologic formation and mapped as such.
Etymology: (1250–1300; ME membre < OF < L membrum)
Definition of 'MEMBER'
Princeton's WordNet
1. (noun)member, fellow member one of the persons who compose a socialgroup (especially individuals who have joined and participate in a group organization) "only members will be admitted"; "a member of the faculty"; "she was introduced to all the members of his family"
2. (noun)member anything that belongs to a set or class "snakes are members of the class Reptilia"; "members of the opposite sex"
3. (noun)extremity, appendage, member an externalbodypart that projects from the body "it is important to keep the extremities warm"
4. (noun)member an organization that is a member of another organization (especially a state that belongs to a group of nations) "the library was a member of the interlibrary loan association"; "Canada is a member of the United Nations"
5. (noun)penis, phallus, member the maleorgan of copulation (`member' is a euphemism)
4. (noun)MEMBER either of the two parts of an algebraic equation, connected by the sign of equality
5. (noun)MEMBER any essential part, as a post, tie rod, strut, etc., of a framed structure, as a bridgetruss
6. (noun)MEMBER any part of a building, whether constructional, as a pier, column, lintel, or the like, or decorative, as a molding, or group of moldings
7. (noun)MEMBER one of the persons composing a society, community, or the like; an individual forming part of an association; as, a member of the society of Friends
8. (verb)MEMBER to remember; to cause to remember; to mention