Webster's Dictionary, 1913

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Orlop noun [ Dutch overloop the upper deck, lit., a running over or overflowing, from overloopen to run over. See Over , and Leap , and confer Overloop .] (Nautical) The lowest deck of a vessel, esp. of a ship of war, consisting of a platform laid over the beams in the hold, on which the cables are coiled.

Ormazd, Ahura-Mazda noun [ Zend Ahuramazda .] (Zoroastrianism) The supreme deity, the principle of good, creator of the world, and guardian of mankind. He is the opponent of Ahriman, the spirit of evil, both being sprung from Eternity, or, according to another version, Ahriman being the offspring of a moment of doubt on the part of Ormazd. Ormazd is attended by angels and archangels. He is represented as a bearded man inclosed in a winged circle, a conception probably derived from the Assyrian representations of Ashur.

Ormer noun (Zoology) An abalone.

Ormolu noun [ French or moulu ; or gold (L. aurum ) + moulu , past participle of moudre to grind, to mill, Latin molere . See Aureate , and Mill .] A variety of brass made to resemble gold by the use of less zinc and more copper in its composition than ordinary brass contains. Its golden color is often heightened by means of lacquer of some sort, or by use of acids. Called also mosaic gold .

Ormolu varnish , a varnish applied to metals, as brass, to give the appearance of gold.

Ormuzd noun [ Zend Ahuramazda .] The good principle, or being, of the ancient Persian religion. See Ahriman .

Orn transitive verb To ornament; to adorn. [ Obsolete] Joye.

Ornament noun [ Middle English ornement , French ornement , from Latin ornamentum , from ornare to adorn.] That which embellishes or adorns; that which adds grace or beauty; embellishment; decoration; adornment.

The ornament of a meek and quiet spirit.
1 Pet. iii. 4.

Like that long-buried body of the king
Found lying with his urns and ornaments .

Ornament transitive verb [ imperfect & past participle Ornamented ; present participle & verbal noun Ornamenting .] To adorn; to deck; to embellish; to beautify; as, to ornament a room, or a city.

Syn. -- See Adorn .

Ornamental adjective [ Confer French ornemental .] Serving to ornament; characterized by ornament; beautifying; embellishing.

Some think it most ornamental to wear their bracelets on their wrists; others, about their ankles.
Sir T. Browne.

Ornamentally adverb By way of ornament.

Ornamentation noun
1. The act or art of ornamenting, or the state of being ornamented.

2. That which ornaments; ornament. C. Kingsley.

Ornamenter noun One who ornaments; a decorator.

Ornate adjective [ Latin ornatus , past participle of ornare to adorn.]
1. Adorned; decorated; beautiful. "So bedecked, ornate , and gay." Milton.

2. Finely finished, as a style of composition.

A graceful and ornate rhetoric.

Ornate transitive verb To adorn; to honor. [ R.]

They may ornate and sanctify the name of God.

Ornately adverb In an ornate manner. Sir T. More.

Ornateness noun The quality of being ornate.

Ornature noun [ Latin ornatura .] Decoration; ornamentation. [ R.] Holinshed.

Ornithic adjective [ Greek ..., ..., a bird.] Of or pertaining to birds; as, ornithic fossils. Owen.

Ornithichnite noun [ Ornitho- + Greek ... track.] (Paleon.) The footmark of a bird occurring in strata of stone. Hitchcock.

Ornithichnology noun [ Ornitho- + ichnology .] (Paleon.) The branch of science which treats of ornithichnites. Hitchcock.

Ornitho- [ Confer Ern .] A combining form from Greek ..., ..., a bird.

Ornithodelphia noun plural [ New Latin , from Greek ... + ... the womb.] Same as Monotremata . - - Or`ni*tho*del"phid adjective

Ornithoidichnite noun [ Ornitho- + -oid + Greek ... footstep, track.] (Paleon.) A fossil track resembling that of a bird. Hitchcock.

Ornitholite noun [ Ornitho- + -lite .] (Paleon.) (a) The fossil remains of a bird. (b) A stone of various colors bearing the figures of birds.

Ornithologic, Ornithological adjective [ Confer French ornithologique .] Of or pertaining to ornithology.

Ornithologist noun [ Confer French ornithologiste .] One skilled in ornithology; a student of ornithology; one who describes birds.

Ornithology noun [ Ornitho- + -logy : confer French ornithologie .]
1. That branch of zoölogy which treats of the natural history of birds and their classification.

2. A treatise or book on this science.

Ornithomancy noun [ Greek ...; ..., ..., a bird + ... divination: confer French ornithomancie .] Divination by means of birds, their flight, etc.

Ornithomancy grew into an elaborate science.
De Quincey.

Ornithon noun [ Latin , from Greek ..., from ..., ..., a bird.] An aviary; a poultry house. Weale.

Ornithopappi noun plural [ New Latin , from Greek ... a bird + ... an ancestor.] (Zoology) An extinct order of birds. It includes only the Archæopteryx.

Ornithopoda noun plural [ New Latin See Ornitho- , and -poda .] (Paleon.) An order of herbivorous dinosaurs with birdlike characteristics in the skeleton, esp. in the pelvis and hind legs, which in some genera had only three functional toes, and supported the body in walking as in Iguanodon. See Illust. in Appendix.

Ornithorhynchus noun [ New Latin , from Greek ..., ..., a bird + ... snout, beak.] (Zoology) See Duck mole , under Duck .

Ornithosauria noun plural [ New Latin See Ornitho- , and Sauria .] (Paleon.) An order of extinct flying reptiles; -- called also Pterosauria .

Ornithoscelida noun plural [ New Latin , from Greek ..., ..., a bird + ... a leg.] (Zoology) A group of extinct Reptilia, intermediate in structure (especially with regard to the pelvis) between reptiles and birds. -- Or`ni*tho*scel"i*dan adjective

Ornithoscopy noun [ Ornitho- + -scopy : confer Greek ... divination from birds.] Observation of birds and their habits. [ R.] De Quincey.

Ornithotomical adjective Of or pertaining to ornithotomy.

Ornithotomist noun One who is skilled in ornithotomy.

Ornithotomy noun [ Greek ..., ..., a bird + ... to cut.] The anatomy or dissection of birds.

Orograph noun [ Greek ... mountain + -graph .] (Surveying) A machine for use in making topographical maps. It is operated by being pushed across country, and not only records distances, like the perambulator, but also elevations.

Orographic, Orographical adjective Of or pertaining to orography.

Orography noun [ Greek 'o`ros , a mountain + -graphy .] That branch of science which treats of mountains and mountain systems; orology; as, the orography of Western Europe.

Oroheliograph noun [ Greek ... mountain + helio- + -graph .] (Photog.) A camera for obtaining a circular panoramic view of the horizon. The photographic plate is placed horizontally with a vertical lens above. A mirror of peculiar shape reflects light from the entire horizon to the lens, by means of which it is focused upon the plate.

Orohippus noun [ New Latin , from Greek 'o`ros , mountain (referring to the Rocky Mountain region) + "i`ppos horse.] (Paleon.) A genus of American Eocene mammals allied to the horse, but having four toes in front and three behind.

Oroide noun [ French or gold (L. aurum ) + Greek ... form.] An alloy, chiefly of copper and zinc or tin, resembling gold in color and brilliancy. [ Written also oreide .]

Orological adjective [ Confer French orologique .] Of or pertaining to orology.

Orologist noun One versed in orology.

Orology noun [ Greek ... mountain + -logy : confer French orologie .] The science or description of mountains.

Orometer noun [ Greek ... mountain + -meter .] (Meteor.) An aneroid barometer having a second scale that gives the approximate elevation above sea level of the place where the observation is made.

Orotund adjective [ Latin os , oris , the mouth + rotundus round, smooth.] Characterized by fullness, clearness, strength, and smoothness; ringing and musical; -- said of the voice or manner of utterance. -- noun The orotund voice or utterance Rush.

Orotundity noun The orotund mode of intonation.