commensal
com.men.sal \k*-'men(t)-s*l\ \-s*-le-\ aj [ME, fr. ML commensalis, fr. L com- + LL mensalis of the tabl]e, fr. L mensa table 1: of or relating to those who habitually eat together 2: living in a state of commensalism - commensal n
Webster's English Dictionarycom.men.sal \k*-'men(t)-s*l\ \-s*-le-\ aj [ME, fr. ML commensalis, fr. L com- + LL mensalis of the tabl]e, fr. L mensa table 1: of or relating to those who habitually eat together 2: living in a state of commensalism - commensal n