/fawr"euh see/ , n. Zool.
(among insects and arachnids) a nonparasitic relationship in which one species is carried about by another.
[ 1920-25; phoresia phóres ( is ) a wearing ( phore-, verbid s. of phoreîn, durative of phérein to BEAR 1 + -sis -SIS) + -ia -Y 3 ]