'Commensal' definitions:

Definition of 'commensal'

From: WordNet
adjective
Living in a state of commensalism
noun
Either of two different animal or plant species living in close association but not interdependent

Definition of 'Commensal'

From: GCIDE
  • Commensal \Com*men"sal\, n. [LL. commensalis; L. com- + mensa table: cf. F. commensal. Cf. Mensal.]
  • 1. One who eats at the same table. [Obs.] [1913 Webster]
  • 2. (Zool.) An animal, not truly parasitic, which lives in, with, or on, another, partaking usually of the same food. Both species may be benefited by the association. [1913 Webster]

Definition of 'Commensal'

From: GCIDE
  • Commensal \Com*men"sal\, a. Having the character of a commensal. [1913 Webster]