† eˈxannulose,a.Zool.Obs. [f. ex- privative + annul-us + -ose.] Of certain invertebrate animals: Having a body not consisting of rings or ring-like segments. 1832Johnston in Proc.Berw.Nat. Club. I. 8 Communications relating to the exannulose invertebrate tribes have been made as yet only by myself.