Defn: An order of Annelida which includes the earthworms and related species.
OLIGOCHETE
Ol"i*go*chete, a. (Zoöl.)
Defn: Of or pertaining to the Oligochæta.
OLIGOCLASE
Ol"i*go*clase, n. Etym: [Oligo- + Gr. (Min.)
Defn: A triclinic soda-lime feldspar. See Feldspar.
OLIGOMEROUS
Ol`i*gom"er*ous, a. Etym: [Oligo- + Gr. (Bot.)
Defn: Having few members in each set of organs; as, an oligomerous flower.
OLIGOMYOLD
Ol`i*go"my*old, a. Etym: [Oligo- + Gr. -oid.] (Anat.)
Defn: Having few or imperfect syringeal muscles; — said of some passerine birds (Oligomyodi).
OLIGOPETALOUS
Ol`i*go*pet"al*ous, a. Etym: [Oligo- + petal.] (Bot.)