Webster's Dictionary, 1913

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Old-maidish adjective Like an old maid; prim; precise; particular.

Old-maidism noun The condition or characteristics of an old maid. G. Eliot.

Old-womanish adjective Like an old woman; anile. -- Old`-wom"an*ish*ness , noun

Oldish adjective Somewhat old.

Oldness noun The state or quality of being old; old age.

Oldster noun [ Confer Youngster .] An old person. [ Jocular] H. Kingsley.

Olea noun [ Latin olive. See Olive .] (Botany) A genus of trees including the olive.

» The Chinese Olea fragrans , noted for its fragrance, and the American devilwood ( Olea Americana ) are now usually referred to another genus ( Osmanthus ).

Oleaceous adjective [ Latin oléaceus of the olive tree.] (Botany) Of, pertaining to, or resembling, a natural order of plants ( Oleaceæ ), mostly trees and shrubs, of which the olive is the type. It includes also the ash, the lilac, the true jasmine, and fringe tree.

Oleaginous adjective [ Latin oleaginus , oleagineus , belonging to the olive, from olea olive: confer French oléagineux . See Olive , Oil .] Having the nature or qualities of oil; oily; unctuous.

Oleaginousness noun Oiliness. Boyle.

Oleamen noun [ Latin ] (Medicine) A soft ointment prepared from oil. Dunglison.

Oleander noun [ French oléandre (cf. Italian oleandro , Late Latin lorandrum ), probably corrupted, under the influence of laurus laurel, from Latin rhododendron , Greek ...; ... rose + ... tree.] (Botany) A beautiful evergreen shrub of the Dogbane family, having clusters of fragrant red or white flowers. It is native of the East Indies, but the red variety has become common in the south of Europe. Called also rosebay , rose laurel , and South-sea rose .

» Every part of the plant is dangerously poisonous, and death has occured from using its wood for skewers in cooking meat.

Oleandrine noun (Chemistry) One of several alkaloids found in the leaves of the oleander.

Oleaster noun [ Latin , from olea olive tree. See Olive , Oil .] (Botany) (a) The wild olive tree ( Olea Europea , var. sylvestris ). (b) Any species of the genus Elæagus . See Eleagnus . The small silvery berries of the common species ( Elæagnus hortensis ) are called Trebizond dates , and are made into cakes by the Arabs.

Oleate noun [ Confer F. oléate .] (Chemistry) A salt of oleic acid. Some oleates, as the oleate of mercury, are used in medicine by way of inunction.

Olecranal adjective (Anat.) Of or pertaining to the olecranon.

Olecranon noun [ New Latin , from Greek ...; ... elbow + krani`on the head.] (Anat.) The large process at the proximal end of the ulna which projects behind the articulation with the humerus and forms the bony prominence of the elbow.

Olefiant adjective [ French oléfiant , from Latin oleum oil + -ficare (in comp.). Confer -Fy .] (Chemistry) Forming or producing an oil; specifically, designating a colorless gaseous hydrocarbon called ethylene . [ Archaic]

Olefine noun [ From Olefiant .] (Chemistry) Olefiant gas, or ethylene; hence, by extension, any one of the series of unsaturated hydrocarbons of which ethylene is a type. See Ethylene .

Oleic adjective [ Latin oleum oil: confer French oléique .] (Physiol.Chem.) Pertaining to, derived from, or contained in, oil; as, oleic acid, an acid of the acrylic acid series found combined with glyceryl in the form of olein in certain animal and vegetable fats and oils, such as sperm oil, olive oil, etc. At low temperatures the acid is crystalline, but melts to an oily liquid above 14... C.

Oleiferous adjective [ Latin oleum oil + -ferous : confer French oléifére .] Producing oil; as, oleiferous seeds.

Olein noun [ Latin oleum oil: confer French oléine .] (Physiol. Chem.) A fat, liquid at ordinary temperatures, but solidifying at temperatures below 0° C., found abundantly in both the animal and vegetable kingdoms (see Palmitin ). It dissolves solid fats, especially at 30-40° C. Chemically, olein is a glyceride of oleic acid; and, as three molecules of the acid are united to one molecule of glyceryl to form the fat, it is technically known as triolein . It is also called elain .

Olent adjective [ Latin olens , present participle of olere to smell.] Scented. [ R.] R. Browning.

Oleo oil An oil expressed from certain animal fats (esp. beef suet), the greater portion of the solid fat, or stearin, being left behind. It is mixture of olein, palmitin, and a little stearin.

Oleograph noun [ Latin oleum oil + -graph .]


1. (Chemistry) The form or figure assumed by a drop of oil when placed upon water or some other liquid with which it does not mix.

2. (Painting) A picture produced in oils by a process analogous to that of lithographic printing.

Oleography noun
1. Art or process of producing the pictures known as oleographs.

2. A process of identifying oils by their oleographs.

Oleomargarine noun [ Latin oleum oil + English margarine , margarin .] [ Written also oleomargarin .]
1. A liquid oil made from animal fats (esp. beef fat) by separating the greater portion of the solid fat or stearin, by crystallization. It is mainly a mixture of olein and palmitin with some little stearin.

2. An artificial butter made by churning this oil with more or less milk.

» Oleomargarine was wrongly so named, as it contains no margarin proper, but olein, palmitin, and stearin, a mixture of palmitin and stearin having formerly been called margarin by mistake.

Oleometer noun [ Latin oleum oil + -meter .] (Chemistry) An instrument for ascertaining the weight and purity of oil; an elaiometer.

Oleone noun [ Latin oleum + - one , 1.] (Chemistry) An oily liquid, obtained by distillation of calcium oleate, and probably consisting of the ketone of oleic acid.

Oleoptene noun [ Latin oleum oil + Cr. ... fleeting.] (Chemistry) See Eleoptene . [ R.]

Oleoresin noun [ Latin oleum oil + English resin .]


1. (Chemistry) A natural mixture of a terebinthinate oil and a resin.

2. (Medicine) A liquid or semiliquid preparation extracted (as from capsicum, cubebs, or ginger) by means of ether, and consisting of fixed or volatile oil holding resin in solution.

-- O`le*o*res"in*ous adjective

Oleose, Oleous adjective [ Latin oleosus , from oleum oil.] Oily. [ R.] Ray. Floyer.

Oleosity noun The state or quality of being oily or fat; fatness. [ R.] B. Jonson.

Oleraceous adjective [ Latin oleraceus , from olus , oleris , garden or pot herbs, vegetables.] Pertaining to pot herbs; of the nature or having the qualities of herbs for cookery; esculent. Sir T. Browne.

Olf noun [ Etymol. uncertain.] (Zoology) The European bullfinch. [ Prov.Eng.]

Olfaction noun [ See Olfactory .] (Physiol.) The sense by which the impressions made on the olfactory organs by the odorous particles in the atmosphere are perceived.

Olfactive adjective See Olfactory , adjective

Olfactor noun A smelling organ; a nose. [ R.]

Olfactory adjective [ Latin olfactus , past participle of olfacere to smell; olere to have a smell + facere to make. See Odor , and Fact .] (Physiol.) Of, pertaining to, or connected with, the sense of smell; as, the olfactory nerves; the olfactory cells.

Olfactory organ (Anat.) , an organ for smelling. In vertebrates the olfactory organs are more or less complicated sacs, situated in the front part of the head and lined with epithelium innervated by the olfactory (or first cranial) nerves , and sensitive to odoriferous particles conveyed to it in the air or in water.

Olfactory noun ; plural Olfactories An olfactory organ; also, the sense of smell; -- usually in the plural.

Oliban noun (Chemistry) See Olibanum .

Olibanum noun [ Late Latin , from Arabic al-luban frankincense; confer Greek ..., ..., of Semitic origin.] The fragrant gum resin of various species of Boswellia ; Oriental frankincense.

Olibene noun (Chemistry) A colorless mobile liquid of a pleasant aromatic odor obtained by the distillation of olibanum, or frankincense, and regarded as a terpene; -- called also conimene .

Olid, Olidous adjective [ Latin olidus , from olere to smell.] Having a strong, disagreeable smell; fetid. [ Obsolete] Boyle. Sir T. Browne.

Olifant noun [ Old French ]
1. An elephant. [ Obsolete]

2. An ancient horn, made of ivory.

Oligandrous adjective [ Oligo- + Greek ..., ..., man, male.] (Botany) Having few stamens.

Oliganthous adjective [ Oligo- + Greek ... flower.] (Botany) Having few flowers.

Oligarch noun A member of an oligarchy; one of the rulers in an oligarchical government.

Oligarchal adjective Oligarchic. Glover.

Oligarchic, Oligarchical adjective [ Greek ...: confer French oligarchique . See Oligarchy .] Of or pertaining to oligarchy, or government by a few. " Oligarchical exiles." Jowett (Thucyd. ).