Oleograph, ō′lē-ō-graf, n. a print in oil-colours to imitate an oil-painting.—n. Oleog′raphy, the art of preparing such. [L. oleum, oil, Gr. graphein, to write.]
Oleraceous, ol-e-rā′shus, adj. of the nature of a pot-herb, for kitchen use. [L.]
Olfactory, ol-fak′tor-i, adj. pertaining to, or used in, smelling. [L. olfactāre, to smell—olēre, to smell, facĕre, to make.]
Olibanum, ō-lib′a-num, n. a gum-resin flowing from incisions in several species of Boswellia in Somaliland and southern Arabia—the Lebonah of the Hebrews, Libanos and Libanōtos of the Greeks.
Oligæmia, ol-i-jē′mi-a, n. abnormal deficiency of blood.
Oligarchy, ol′i-gärk-i, n. government by a small exclusive class: a state governed by such: a small body of men who have the supreme power of a state in their hands.—n. Ol′igarch, a member of an oligarchy.—adjs. Oligarch′al, Oligarch′ic, -al, pertaining to an oligarchy. [Fr.,—Gr., oligos, few, archein, to rule.]
Oligist, ol′i-jist, n. a crystallised variety of hematite.
Oligocene, ol′i-gō-sēn, adj. (geol.) pertaining to a division of the Tertiary series, the rocks chiefly of fresh and brackish water origin, with intercalations of marine beds. [Gr. oligos, little, kainos, new.]
Oligochrome, ol′i-gō-krōm, adj. and n. painted in few colours. [Gr. oligos, few, chrōma, colour.]
Oligoclase, ol′i-gō-klās, n. a soda-lime triclinic feldspar.