Ogle O"gle noun An amorous side glance or look. Byron.

Ogler O"gler noun One who ogles. Addison.

Oglio O"gli·o noun See Olio .

Ogre O"gre (ō"gẽr) noun [ French, from Spanish ogro , from Latin Orcus the god of the infernal regions; also, the lower world, hell.] An imaginary monster, or hideous giant of fairy tales, who lived on human beings; hence, any frightful giant; a cruel monster.

His schoolroom must have resembled an ogre's den.

Maccaulay.

Ogreish O"gre·ish adjective Resembling an ogre; having the character or appearance of an ogre; suitable for an ogre. "An ogreish kind of jocularity." Dickens.

Ogreism, Ogrism O"gre·ism, O"grism noun The character or manners of an ogre.

Ogress O"gress noun [ French ogresse . See Ogre .] A female ogre. Tennyson.

Ogygian O·gyg"i·an (o*jĭj"ĭ* a n) adjective [ Latin Ogygius , Greek 'Ogy`gios .] Of or pertaining to Ogyges, a mythical king of ancient Attica, or to a great deluge in Attica in his days; hence, primeval; of obscure antiquity.

Oh Oh (ō) interj. [ See O , interj. ] An exclamation expressing various emotions, according to the tone and manner, especially surprise, pain, sorrow, anxiety, or a wish. See the Note under O .

Ohm Ohm (ōm) noun [ So called from the German electrician, G. S. Ohm .] (Electricity) The standard unit in the measure of electrical resistance, being the resistance of a circuit in which a potential difference of one volt produces a current of one ampére. As defined by the International Electrical Congress in 1893, and by United States Statute, it is a resistance substantially equal to 10 ⁹ units of resistance of the C. G. S. system of electro-magnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice 14.4521 grams in mass, of a constant cross-sectional area, and of the length of 106.3 centimeters. As thus defined it is called the international ohm . Ohm's law (Electricity) , the statement of the fact that the strength or intensity of an electrical current is directly proportional to the electro-motive force, and inversely proportional to the resistance of the circuit.

Ohmmeter Ohm"me`ter noun [ Ohm + meter .] (Electricity) An instrument for indicating directly resistance in ohms.

Oho O·ho" interj. An exclamation of surprise, etc.

Oïdium O·ïd"i·um noun [ New Latin , dim. from Greek w,'o`n egg.] (Botany) A genus of minute fungi which form a floccose mass of filaments on decaying fruit, etc. Many forms once referred to this genus are now believed to be temporary conditions of fungi of other genera, among them the vine mildew ( Oïdium Tuckeri ), which has caused much injury to grapes.

Oil Oil (oil) noun [ Middle English oile , Old French oile , French huile , from Latin oleum ; akin to Greek .... Confer Olive .] Any one of a great variety of unctuous combustible substances, not miscible with water; as, olive oil , whale oil , rock oil , etc. They are of animal, vegetable, or mineral origin and of varied composition, and they are variously used for food, for solvents, for anointing, lubrication, illumination, etc. By extension, any substance of an oily consistency; as, oil of vitriol. » The mineral oils are varieties of petroleum. See Petroleum . The vegetable oils are of two classes, essential oils (see under Essential ), and natural oils which in general resemble the animal oils and fats. Most of the natural oils and the animal oils and fats consist of ethereal salts of glycerin, with a large number of organic acids, principally stearic, oleic, and palmitic, forming respectively stearin, olein, and palmitin. Stearin and palmitin prevail in the solid oils and fats, and olein in the liquid oils. Mutton tallow, beef tallow, and lard are rich in stearin, human fat and palm oil in palmitin, and sperm and cod-liver oils in olein. In making soaps, the acids leave the glycerin and unite with the soda or potash. Animal oil , Bone oil , Dipple's oil , etc. (Old Chem.) , a complex oil obtained by the distillation of animal substances, as bones. See Bone oil , under Bone . -- Drying oils , Essential oils . (Chemistry) See under Drying , and Essential . -- Ethereal oil of wine , Heavy oil of wine . (Chemistry) See under Ethereal . -- Fixed oil . (Chemistry) See under Fixed . -- Oil bag (Zoology) , a bag, cyst, or gland in animals, containing oil. -- Oil beetle (Zoology) , any beetle of the genus Meloe and allied genera. When disturbed they emit from the joints of the legs a yellowish oily liquor. Some species possess vesicating properties, and are used instead of cantharides. -- Oil box , or Oil cellar (Machinery) , a fixed box or reservoir, for lubricating a bearing; esp., the box for oil beneath the journal of a railway-car axle. -- Oil cake . See under Cake . -- Oil cock , a stopcock connected with an oil cup. See Oil cup . -- Oil color . (a) A paint made by grinding a coloring substance in oil . (b) Such paints, taken in a general sense. -- Oil cup , a cup, or small receptacle, connected with a bearing as a lubricator, and usually provided with a wick, wire, or adjustable valve for regulating the delivery of oil. -- Oil engine , a gas engine worked with the explosive vapor of petroleum. - - Oil gas , inflammable gas procured from oil, and used for lighting streets, houses, etc. -- Oil gland . (a) (Zoology) A gland which secretes oil; especially in birds, the large gland at the base of the tail . (b) (Botany) A gland, in some plants, producing oil. -- Oil green , a pale yellowish green, like oil. -- Oil of brick , empyreumatic oil obtained by subjecting a brick soaked in oil to distillation at a high temperature, -- used by lapidaries as a vehicle for the emery by which stones and gems are sawn or cut. Brande & C. -- Oil of talc , a nostrum made of calcined talc, and famous in the 17th century as a cosmetic. [ Obsolete] B. Jonson. -- Oil of vitriol (Chemistry) , strong sulphuric acid; -- so called from its oily consistency and from its forming the vitriols or sulphates. -- Oil of wine , Œnanthic ether. See under Œnanthic . -- Oil painting . (a) The art of painting in oil colors . (b) Any kind of painting of which the pigments are originally ground in oil. -- Oil palm (Botany) , a palm tree whose fruit furnishes oil, esp. Elæis Guineensis . See Elæis . -- Oil sardine (Zoology) , an East Indian herring ( Clupea scombrina ), valued for its oil. -- Oil shark (Zoology) (a) The liver shark . (b) The tope. -- Oil still , a still for hydrocarbons, esp. for petroleum. -- Oil test , a test for determining the temperature at which petroleum oils give off vapor which is liable to explode. -- Oil tree . (Botany) (a) A plant of the genus Ricinus ( R. communis ), from the seeds of which castor oil is obtained. (b) An Indian tree, the mahwa. See Mahwa . (c) The oil palm. -- To burn the midnight oil , to study or work late at night. -- Volatle oils . See Essential oils , under Essential .

Oil Oil transitive verb [ imperfect & past participle Oiled ; present participle & verbal noun Oiling .] To smear or rub over with oil; to lubricate with oil; to anoint with oil.

Oilbird Oil"bird` noun (Zoology) See Guacharo .

Oilcloth Oil"cloth" noun Cloth treated with oil or paint, and used for marking garments, covering floors, etc.

Oiled Oiled adjective Covered or treated with oil; dressed with, or soaked in, oil. Oiled silk , silk rendered waterproof by saturation with boiled oil.

Oiler Oil"er noun 1. One who deals in oils. 2. One who, or that which, oils.

Oilery Oil"er·y noun [ Confer F. huilerie .] The business, the place of business, or the goods, of a maker of, or dealer in, oils.

Oiliness Oil"i·ness noun The quality of being oily. Bacon.

Oillet Oil"let noun [ See Eyelet .] (Architecture) (a) A small opening or loophole, sometimes circular, used in mediæval fortifications. (b) A small circular opening, and ring of moldings surrounding it, used in window tracery in Gothic architecture. [ Written also oylet .]

Oilman Oil"man noun ; plural Oilmen One who deals in oils; formerly, one who dealt in oils and pickles.

Oilnut Oil"nut` noun (Botany) The buffalo nut. See Buffalo nut , under Buffalo . » The name is also applied to various nuts and seeds yielding oil, as the butternut, cocoanut, oil-palm nut.

Oilseed Oil"seed` noun (Botany) (a) Seed from which oil is expressed, as the castor bean; also, the plant yielding such seed. See Castor bean . (b) A cruciferous herb ( Camelina sativa ). (c) The sesame.

Oilskin Oil"skin` noun Cloth made waterproof by oil.

Oilstone Oil"stone` noun A variety of hone slate, or whetstone, used for whetting tools when lubricated with oil.

Oily Oil"y adjective [ Compar. Oilier ; superl. Oiliest .] 1. Consisting of oil; containing oil; having the nature or qualities of oil; unctuous; oleaginous; as, oily matter or substance. Bacon. 2. Covered with oil; greasy; hence, resembling oil; as, an oily appearance. 3. Smoothly subservient; supple; compliant; plausible; insinuating. "This oily rascal." Shak.

His oily compliance in all alterations.

Fuller. Oily grain (Botany) , the sesame. - - Oily palm , the oil palm.

Oinement Oi"ne·ment noun Ointment. [ Obsolete] Chaucer.

Oinomania Oi`no·ma"ni·a noun See œnomania .

Oint Oint transitive verb [ imperfect & past participle Ointed ; p. pr & verbal noun Ointing .] [ French oint , past participle of oindre , Latin ungere . See Anoint , Ointment .] To anoint. [ Obsolete] Dryden.

Ointment Oint"ment noun [ Middle English oinement , Old French oignement , from French oindre to anoint, Latin ungere , unguere ; akin to Sanskrit a...j , and to German anke (in Switzerland) butter. The first t in the E. word is due to the influence of anoint . Confer Anoint , Unguent .] That which serves to anoint; any soft unctuous substance used for smearing or anointing; an unguent.

Ojibways O·jib"ways noun plural ; sing. Ojibway . (Ethnol.) Same as Chippeways .

Ojo O"jo noun [ Spanish , prop., an eye.] A spring, surrounded by rushes or rank grass; an oasis. [ Southwestern U.S.] Bartlett.

Okapi O·ka"pi noun [ Native name on the borders of Belgian Kongo, possibly the same word as Mpongwe okapo lean.] A peculiar mammal ( Okapia johnostoni ) closely related to the giraffe, discovered in the deep forests of Belgian Kongo in 1900. It is smaller than an ox, and somewhat like a giraffe, except that the neck is much shorter. Like the giraffe, it has no dewclaws. There is a small prominence on each frontal bone of the male. The color of the body is chiefly reddish chestnut, the cheeks are yellowish white, and the fore and hind legs above the knees and the haunches are striped with purplish black and cream color.

Oke Oke noun [ Turk. okkah , from Arabic ūkīyah , wakīyah , probably from Greek ..., ..., an ounce, from Latin uncia. Confer Ounce a weight.] 1. A Turkish and Egyptian weight, equal to about 2¾ pounds. 2. An Hungarian and Wallachian measure, equal to about 2½ pints.

Okenite O"ken·ite noun [ Prob. from Lorenz Oken , a German naturalist.] (Min.) A massive and fibrous mineral of a whitish color, chiefly hydrous silicate of lime.

Oker O"ker noun (Min.) See Ocher .

Okra O"kra noun (Botany) An annual plant ( Abelmoschus, or Hibiscus, esculentus ), whose green pods, abounding in nutritious mucilage, are much used for soups, stews, or pickles; gumbo. [ Written also ocra and ochra .]

Okra O"kra noun The pods of the plant okra, used as a vegetable; also, a dish prepared with them; gumbo.

Olay O"lay noun plural [ Tamil ōlai .] Palm leaves, prepared for being written upon with a style pointed with steel. [ Written also ola .] Balfour (Cyc. of India).

Old Old noun Open country. [ Obsolete] See World . Shak.

Old Old adjective [ Compar. Older ; superl. Oldest .] [ Middle English old , ald , Anglo-Saxon ald , eald ; akin to Dutch oud , Old Saxon ald , OFries. ald , old , German alt , Goth. alpeis , and also to Goth. alan to grow up, Icelandic ala to bear, produce, bring up, Latin alere to nourish. Confer Adult , Alderman , Aliment , Auld , Elder .] 1. Not young; advanced far in years or life; having lived till toward the end of the ordinary term of living; as, an old man; an old age; an old horse; an old tree.

Let not old age disgrace my high desire.

Sir P. Sidney.

The melancholy news that we grow old .

Young. 2. Not new or fresh; not recently made or produced; having existed for a long time; as, old wine; an old friendship. "An old acquaintance." Camden. 3. Formerly existing; ancient; not modern; preceding; original; as, an old law; an old custom; an old promise. "The old schools of Greece." Milton. "The character of the old Ligurians." Addison. 4. Continued in life; advanced in the course of existence; having (a certain) length of existence; -- designating the age of a person or thing; as, an infant a few hours old ; a cathedral centuries old .

And Pharaoh said unto Jacob, How old art thou?

Cen. xlvii. 8. » In this use old regularly follows the noun that designates the age; as, she was eight years old . 5. Long practiced; hence, skilled; experienced; cunning; as, an old offender; old in vice.

Vane, young in years, but in sage counsel old .

Milton. 6. Long cultivated; as, an old farm; old land, as opposed to new land, that is, to land lately cleared. 7. Worn out; weakened or exhausted by use; past usefulness; as, old shoes; old clothes. 8. More than enough; abundant. [ Obsolete]

If a man were porter of hell gate, he should have old turning the key.

Shak. 9. Aged; antiquated; hence, wanting in the mental vigor or other qualities belonging to youth; -- used disparagingly as a term of reproach. 10. Old-fashioned; wonted; customary; as of old ; as, the good old times; hence, colloquially, gay; jolly. 11. Used colloquially as a term of cordiality and familiarity. "Go thy ways, old lad." Shak. Old age , advanced years; the latter period of life. -- Old bachelor . See Bachelor , 1. -- Old Catholics . See under Catholic . -- Old English . See under English . noun , 2. -- Old Nick , Old Scratch , the devil. -- Old lady (Zoology) , a large European noctuid moth ( Mormo maura ). -- Old maid . (a) A woman, somewhat advanced in years, who has never been married; a spinster . (b) (Botany) A West Indian name for the pink-flowered periwinkle ( Vinca rosea ). (c) A simple game of cards, played by matching them. The person with whom the odd card is left is the old maid . -- Old man's beard . (Botany) (a) The traveler's joy ( Clematis Vitalba ). So named from the abundant long feathery awns of its fruit. (b) The Tillandsia usneoides . See Tillandsia . -- Old man's head (Botany) , a columnar cactus ( Pilocereus senilis ), native of Mexico, covered towards the top with long white hairs. -- Old red sandstone (Geol.) , a series of red sandstone rocks situated below the rocks of the Carboniferous age and comprising various strata of siliceous sandstones and conglomerates. See Sandstone , and the Chart of Geology . -- Old school , a school or party belonging to a former time, or preserving the character, manner, or opinions of a former time; as, a gentleman of the old school ; -- used also adjectively; as, Old-School Presbyterians. -- Old sledge , an old and well-known game of cards, called also all fours , and high, low, Jack, and the game . -- Old squaw (Zoology) , a duck ( Clangula hyemalis ) inhabiting the northern parts of both hemispheres. The adult male is varied with black and white and is remarkable for the length of its tail. Called also longtailed duck , south southerly , callow , hareld , and old wife . -- Old style . (Chron.) See the Note under Style . -- Old Testament . See under Testament . -- Old wife . [ In the senses b and c written also oldwife .] (a) A prating old woman; a gossip.

Refuse profane and old wives' fables.

1 Tim. iv. 7. (b) (Zoology) The local name of various fishes, as the European black sea bream ( Cantharus lineatus ), the American alewife, etc. (c) (Zoology) A duck; the old squaw. -- Old World , the Eastern Hemisphere. Syn. -- Aged; ancient; pristine; primitive; antique; antiquated; old-fashioned; obsolete. See Ancient .

Old Dominion Old Dominion Virginia; -- a name of uncertain origin, perhaps from the old designation of the colony as "the Colony and Dominion of Virginia."

Old lang syne Old` lang syne" See Auld lang syne .

Old Line State Old Line State Maryland; a nickname, alluding to the fact that its northern boundary in Mason and Dixon's line.

Old-fashioned Old`-fash"ioned adjective Formed according to old or obsolete fashion or pattern; adhering to old customs or ideas; as, an old-fashioned dress, girl. " Old-fashioned men of wit." Addison.

This old-fashioned , quaint abode.

Longfellow.

Old-gentlemanly Old`-gen"tle·man·ly adjective Pertaining to an old gentleman, or like one. Byron.

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

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