Defn: One who annuls. [R.]

ANNULMENT
An*nul"ment, n. Etym: [Cf. F. annulement.]

Defn: The act of annulling; abolition; invalidation.

ANNULOID
An"nu*loid, a. (Zoöl.)

Defn: Of or pertaining to the Annuloida.

ANNULOIDA
An`nu*loid"a, n. pl. Etym: [NL., fr. L. annulus ring + -oid.] (Zoöl.)

Defn: A division of the Articulata, including the annelids and allied groups; sometimes made to include also the helminths and echinoderms. [Written also Annuloidea.]

ANNULOSA
An"nu*lo"sa, n. pl. Etym: [NL.] (Zoöl.)

Defn: A division of the Invertebrata, nearly equivalent to the Articulata. It includes the Arthoropoda and Anarthropoda. By some zoölogists it is applied to the former only.

ANNULOSAN
An`nu*lo"san, n. (Zoöl.)