Commensal /(?)/

Com·men·sal

Commensal

n.
  1. One who eats at the same table. [Obs.]
  2. 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. (Zool.)

Commensal

a.
  1. Having the character of a commensal.