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Webster's Revised Unabridged Dictionary (1913, 100,000 entries)

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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | Webster > Letter O > Page 28 of 63.
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Orbate Or"bate adjective [ Latin orbatus , past participle of orbare to bereave, from orbus bereaved of parents or children. See Orphan .] Bereaved; fatherless; childless. [ Obsolete]

Orbation Or·ba"tion noun [ Latin orbatio .] The state of being orbate, or deprived of parents or children; privation, in general; bereavement. [ Obsolete] Bp. Hall.

Orbed Orbed adjective Having the form of an orb; round.

The orbèd eyelids are let down.

Trench.

Orbic, Orbical Or"bic, Or"bic·al adjective [ Latin orbicus , or orbitus , from orbis orb.] Spherical; orbicular; orblike; circular. [ R.] Bacon.

Orbicle Or"bi·cle noun [ Latin orbiculus , dim. of orbis orb.] A small orb, or sphere. [ Obsolete] G. Fletcher.

Orbicula Or·bic"u·la noun [ New Latin See Orbicle .] (Zoology) Same as Discina .

Orbicular Or·bic"u·lar adjective [ Latin orbicularis , from orbiculus , dim. of orbis orb: confer French orbiculaire .] Resembling or having the form of an orb; spherical; circular; orbiculate. -- Or*bic"u*lar*ly , adverb -- Or*bic"u*lar*ness , noun

Orbicular as the disk of a planet.

De Quincey.

Orbiculate Or·bic"u·late noun That which is orbiculate; especially, a solid the vertical section of which is oval, and the horizontal section circular.

Orbiculate, Orbiculated Or·bic"u·late, Or·bic"u·la`ted adjective [ Latin orbiculatus . See Orbicular .] Made, or being, in the form of an orb; having a circular, or nearly circular, or a spheroidal, outline. Orbiculate leaf (Botany) , a leaf whose outline is nearly circular.

Orbiculation Or·bic`u·la"tion noun The state or quality of being orbiculate; orbicularness. Dr. H. More.

Orbit Or"bit noun [ Latin orbita a track or rut made by a wheel, course, circuit, from orbis a circle: confer French orbite . See 2d Orb .] 1. (Astron.) The path described by a heavenly body in its periodical revolution around another body; as, the orbit of Jupiter, of the earth, of the moon. 2. An orb or ball. [ Rare & Improper]

Roll the lucid orbit of an eye.

Young. 3. (Anat.) The cavity or socket of the skull in which the eye and its appendages are situated. 4. (Zoology) The skin which surrounds the eye of a bird.

Orbital Or"bit·al adjective Of or pertaining to an orbit. " Orbital revolution." J. D. Forbes. Orbital index (Anat.) , in the skull, the ratio of the vertical height to the transverse width of the orbit, which is taken as the standard, equal to 100.

Orbitar Or"bit·ar adjective [ Confer French orbitaire .] Orbital. [ R.] Dunglison.

Orbitary Or"bit·a·ry adjective Situated around the orbit; as, the orbitary feathers of a bird.

Orbitelæ Or`bi·te"læ noun plural [ New Latin , from Latin orbis an orb + tela a web.] (Zoology) A division of spiders, including those that make geometrical webs, as the garden spider, or Epeira.

Orbitolites Or`bi·to·li"tes noun [ New Latin See Orbit , and -lite .] (Zoology) A genus of living Foraminifera, forming broad, thin, circular disks, containing numerous small chambers.

Orbitonasal Or`bi·to·na"sal adjective [ Orbit + nasal .] (Anat.) Of or pertaining to the orbit and the nose; as, the orbitonasal , or ophthalmic, nerve.

Orbitosphenoid Or`bi·to·sphe"noid adjective [ Orbit + sphenoid .] (Anat.) Of or pertaining to the sphenoid bone and the orbit, or to the orbitosphenoid bone. -- noun The orbitosphenoid bone, which is situated in the orbit on either side of the presphenoid. It generally forms a part of the sphenoid in the adult.

Orbitosphenoidal Or`bi·to·sphe·noid"al adjective (Anat.) Of or pertaining to the orbitosphenoid bone; orbitosphenoid.

Orbituary Or·bit"u·a·ry adjective Orbital. [ R.]

Orbitude, Orbity Or"bi·tude, Or"bi·ty noun [ Latin orbitudo , orbitas , from orbus : confer French orbité . See Orbate .] Orbation. [ Obsolete] Bp. Hall.

Orbulina Or`bu·li"na noun [ New Latin , dim. of Latin orbis orb.] (Zoology) A genus of minute living Foraminifera having a globular shell.

Orby Orb"y adjective [ From 2d Orb .] Orblike; having the course of an orb; revolving. [ Obsolete] " Orby hours." Chapman.

Orc Orc noun [ Latin orca : confer French orque .] (Zoology) The grampus. [ Written also ork and orch .] Milton.

Orcadian Or·ca"di·an adjective [ Latin Orcades the Orkney Islands.] Of or pertaining to the Orkney Islands.

Orcein Or"ce·in noun (Chemistry) A reddish brown amorphous dyestuff, ..., obtained from orcin, and forming the essential coloring matter of cudbear and archil. It is closely related to litmus.

Orchal Or"chal noun See Archil .

Orchanet Or"cha·net noun [ French orcanète .] (Botany) Same as Alkanet , 2. Ainsworth.

Orchard Or"chard noun [ Anglo-Saxon ortgeard , wyrtgeard , lit., wortyard, i. e., a yard for herbs; wyrt herb + geard yard. See Wort , Yard inclosure.] 1. A garden. [ Obsolete] 2. An inclosure containing fruit trees; also, the fruit trees, collectively; -- used especially of apples, peaches, pears, cherries, plums, or the like, less frequently of nutbearing trees and of sugar maple trees. Orchard grass (Botany) , a tall coarse grass ( Dactylis glomerata ), introduced into the United States from Europe. It grows usually in shady places, and is of value for forage and hay. -- Orchard house (Hort.) , a glazed structure in which fruit trees are reared in pots. -- Orchard oriole (Zool.) , a bright-colored American oriole ( Icterus spurius ), which frequents orchards. It is smaller and darker thah the Baltimore oriole.

Orcharding Or"chard·ing noun 1. The cultivation of orchards. 2. Orchards, in general.

Orchardist Or"chard·ist noun One who cultivates an orchard.

Orchel Or"chel noun Archil.

Orchesography Or`che·sog"ra·phy noun [ Greek ... dance + -graphy .] A treatise upon dancing. [ R.]

Orchester Or"ches·ter noun See Orchestra .

Orchestian Or·ches"tian noun [ From Greek ... a dancer. See Orchestra .] (Zoology) Any species of amphipod crustacean of the genus Orchestia , or family Orchestidæ . See Beach flea , under Beach .

Orchestra Or"ches·tra noun [ Latin orchestra , Greek ..., orig., the place for the chorus of dancers, from ... to dance: confer French orchestre .] 1. The space in a theater between the stage and the audience; -- originally appropriated by the Greeks to the chorus and its evolutions, afterward by the Romans to persons of distinction, and by the moderns to a band of instrumental musicians. 2. The place in any public hall appropriated to a band of instrumental musicians. 3. (Mus.) (a) Loosely: A band of instrumental musicians performing in a theater, concert hall, or other place of public amusement. (b) Strictly: A band suitable for the performance of symphonies, overtures, etc., as well as for the accompaniment of operas, oratorios, cantatas, masses, and the like, or of vocal and instrumental solos. (c) A band composed, for the largest part, of players of the various viol instruments, many of each kind, together with a proper complement of wind instruments of wood and brass; -- as distinguished from a military or street band of players on wind instruments, and from an assemblage of solo players for the rendering of concerted pieces, such as septets, octets, and the like. 4. (Mus.) The instruments employed by a full band, collectively; as, an orchestra of forty stringed instruments, with proper complement of wind instruments.

Orchestral Or"ches·tral adjective Of or pertaining to an orchestra; suitable for, or performed in or by, an orchestra.

Orchestration Or`ches·tra"tion noun (Mus.) The arrangement of music for an orchestra; orchestral treatment of a composition; -- called also instrumentation .

Orchestre Or"ches·tre noun [ French] See Orchestra .

Orchestric Or·ches"tric adjective Orchestral.

Orchestrion Or·ches"tri·on noun A large music box imitating a variety of orchestral instruments.

Orchid Or"chid noun [ See Orchis .] (Botany) Any plant of the order Orchidaceæ . See Orchidaceous .

Orchidaceous Or`chi·da"ceous adjective (Botany) Pertaining to, or resembling, a natural order ( Orchidaceæ ) of endogenous plants of which the genus Orchis is the type. They are mostly perennial herbs having the stamens and pistils united in a single column, and normally three petals and three sepals, all adherent to the ovary. The flowers are curiously shaped, often resembling insects, the odd or lower petal (called the lip ) being unlike the others, and sometimes of a strange and unexpected appearance. About one hundred species occur in the United States, but several thousand in the tropics. » Over three hundred genera are recognized.

Orchidean Or·chid"e·an adjective (Botany) Orchidaceous.

Orchideous Or·chid"e·ous adjective (Botany) Same as Orchidaceous .

Orchidologist Or`chid·ol"o·gist noun One versed in orchidology.

Orchidology Or`chid·ol"o·gy noun [ Greek ... the orchis + -logy .] The branch of botany which treats of orchids.

Orchil Or"chil noun See Archil .

Orchilla weed Or·chil"la weed` (Botany) The lichen from which archil is obtained. See Archil .

Orchis Or"chis noun ; plural Orchises . [ Latin , from Greek ... a testicle, the orchis; -- so called from its tubers.] 1. (Botany) A genus of endogenous plants growing in the North Temperate zone, and consisting of about eighty species. They are perennial herbs growing from a tuber (beside which is usually found the last year's tuber also), and are valued for their showy flowers. See Orchidaceous . 2. (Botany) Any plant of the same family with the orchis; an orchid. » The common names, such as bee orchis , fly orchis , butterfly orchis , etc., allude to the peculiar form of the flower.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | Webster > Letter O > Page 28 of 63.
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