OLIGIST
Ol"i*gist, n. Etym: [See Oligist, a.] (Min.)
Defn: Hematite or specular iron ore; — prob. so called in allusion to its feeble magnetism, as compared with magnetite.
OLIGIST; OLIGISTIC
Ol"i*gist, Ol`i*gis"tic, a. Etym: [Gr. oligiste.] (Min.)
Defn: Of or pertaining to hematite.
OLIGO-
Ol"i*go-.
Defn: A combining form from Gr. few, little, small.
OLIGOCENE
Ol"i*go*cene, a. Etym: [Oligo- + Gr. (Geol.)
Defn: Of, pertaining to, or designating, certain strata which occupy an intermediate position between the Eocene and Miocene periods. — n.
Defn: The Oligocene period. See the Chart of Geology.
OLIGOCHAETA
Ol`i*go*chæ"ta, n. pl. Etym: [NL., fr. Gr. (Zoöl.)