Orphaline noun See Orpheline . [ Obsolete]

Orphan noun [ Latin orphanus , Greek ..., akin to Latin orbus . Confer Orb a blank window.] A child bereaved of both father and mother; sometimes, also, a child who has but one parent living.

Orphans' court (Law) , a court in some of the States of the Union, having jurisdiction over the estates and persons of orphans or other wards. Bouvier.

Orphan adjective Bereaved of parents, or (sometimes) of one parent.

Orphan transitive verb [ imperfect & past participle Orphaned ; present participle & verbal noun Orphaning .] To cause to become an orphan; to deprive of parents. Young.

Orphanage noun
1. The state of being an orphan; orphanhood; orphans, collectively.

2. An institution or asylum for the care of orphans.

Orphancy noun Orphanhood. Sir P. Sidney.

Orphanet noun A little orphan. Drayton.

Orphanhood noun The state or condition of being an orphan; orphanage.

Orphanism noun Orphanhood. [ R.]

Orphanotrophism noun The care and support of orphans. [ R.] Cotton Mather (1711).

Orphanotrophy noun [ Latin orphanotrophium , Greek ...; ... an orphan + ... to feed, bring up.]

1. A hospital for orphans. [ R.] A. Chalmers.

2. The act of supporting orphans. [ R.]

Orpharion noun (Mus.) An old instrument of the lute or cittern kind. [ Spelt also orpheoreon .]

Orphean adjective [ Latin Orph ... us , Greek ....] Of or pertaining to Orpheus, the mythic poet and musician; as, Orphean strains. Cowper.

Orpheline noun [ French orphelin . See Orphan .] An orphan. [ Obsolete] Udcll.

Orpheus noun [ Latin Orpheus , Greek ....] (Gr. Myth.) The famous mythic Thracian poet, son of the Muse Calliope, and husband of Eurydice. He is reputed to have had power to entrance beasts and inanimate objects by the music of his lyre.

Orphic adjective [ Latin Orphicus , Greek ....] Pertaining to Orpheus; Orphean; as, Orphic hymns.

Orphrey noun [ See Orfrays .] A band of rich embroidery, wholly or in part of gold, affixed to vestments, especially those of ecclesiastics. Pugin.

Orpiment noun [ French, from Latin auripigmentum ; aurum gold + pigmentum pigment. Confer Aureate , Pigment , Orpin , Orpine .] (Chemistry) Arsenic sesquisulphide, produced artificially as an amorphous lemonyellow powder, and occurring naturally as a yellow crystalline mineral; -- formerly called auripigment . It is used in king's yellow, in white Indian fire, and in certain technical processes, as indigo printing.

Our orpiment and sublimed mercurie.

Chaucer.

Red orpiment , realgar; the red sulphide of arsenic. -- Yellow orpiment , king's yellow.

Orpin noun [ French, orpiment, also, the plant orpine. See Orpiment .]
1. A yellow pigment of various degrees of intensity, approaching also to red.

2. (Botany) The orpine.

Orpine noun [ French orpin the genus of plants which includes orpine; -- so called from the yellow blossoms of a common species ( Sedum acre ). See Orpiment .] (Botany) A low plant with fleshy leaves ( Sedum telephium ), having clusters of purple flowers. It is found on dry, sandy places, and on old walls, in England, and has become naturalized in America. Called also stonecrop , and live-forever . [ Written also orpin .]

Orrach noun See Orach .

Orrery noun ; plural Orreries . [ So named in honor of the Earl of Orrery .] An apparatus which illustrates, by the revolution of balls moved by wheelwork, the relative size, periodic motions, positions, orbits, etc., of bodies in the solar system.

Orris noun [ Prob. corrupted from Italian ireos iris. See Iris .] (Botany) A plant of the genus Iris ( I. Florentina ); a kind of flower-de- luce. Its rootstock has an odor resembling that of violets.

Orris pea (Medicine) , an issue pea made from orris root. -- Orris root , the fragrant rootstock of the orris.

Orris noun
1. [ Contr. from orfrays , or from arras .] A sort of gold or silver lace. Johnson.

2. A peculiar pattern in which gold lace or silver lace is worked; especially, one in which the edges are ornamented with conical figures placed at equal distances, with spots between them.

Orsedew, Orsedue noun Leaf metal of bronze; Dutch metal. See under Dutch .

Orseille noun [ French] See Archil .

Orsellic adjective [ From French orseille archil. See Archil .] (Chemistry) Pertaining to, or designating, an acid found in certain lichens, and called also lecanoric acid . [ Formerly written also orseillic .]

Orsellinic adjective (Chemistry) Pertaining to, or designating, an organic acid obtained by a partial decomposition of orsellic acid as a white crystalline substance, and related to protocatechuic acid.

Ort noun ; plural Orts . [ Akin to LG. ort , ortels , remnants of food, refuse, OFries. ort , OD. oorete , ooraete ; probably from the same prefix as in English or deal + a word akin to eat .] A morsel left at a meal; a fragment; refuse; -- commonly used in the plural. Milton.

Let him have time a beggar's orts to crave.

Shak.

Ortalidian noun (Zoology) Any one of numerous small two-winged flies of the family Ortalidæ . The larvæ of many of these flies live in fruit; those of others produce galls on various plants.

Orthid noun (Zoology) A brachiopod shell of the genus Orthis, and allied genera, of the family Orthidæ .

Orthis (ôr"thĭs) noun [ New Latin , from Greek 'orqo`s straight.] (Zoology) An extinct genus of Brachiopoda, abundant in the Paleozoic rocks.

Orthite noun [ Greek ... straight.] (Min.) A variety of allanite occurring in slender prismatic crystals.

Ortho- [ Greek ... straight; akin to Sanskrit ...rdhva upright, vrdh to grow, to cause to grow.]

1. A combining form signifying straight , right , upright , correct , regular ; as, ortho dromy, ortho diagonal, ortho dox, ortho graphic.

2. (Chemistry) A combining form (also used adjectively) , designating: (a) (Inorganic Chem.) The one of several acids of the same element (as the phosphoric acids), which actually occurs with the greatest number of hydroxyl groups ; as, ortho phosphoric acid. Confer Normal . (b) (Organic Chem.) Connection with , or affinity to , one variety of isomerism, characteristic of the benzene compounds; -- contrasted with meta- or para- ; as, the ortho position; hence, designating any substance showing such isomerism; as, an ortho compound.

» In the graphic representation of the benzene nucleus (see Benzene nucleus , under Benzene ), provisionally adopted, any substance exhibiting double substitution in adjacent and contiguous carbon atoms, as 1 & 2, 3 & 4, 4 & 5, etc., is designated by ortho- ; as, ortho xylene; any substance exhibiting substitution of two carbon atoms with one intervening, as 1 & 3, 2 & 4, 3 & 5, 4 & 6, etc., by meta- ; as, resorcin or meta xylene; any substance exhibiting substitution in opposite parts, as 1 & 4, 2 & 5, 3 & 6, by para- ; as, hydroquinone or para xylene.

Orthocarbonic adjective [ Ortho- + carbonic .] (Chemistry) Designating a complex ether, C.(OC ₂ H ₅ ) ₄ , which is obtained as a liquid of a pleasant ethereal odor by means of chlorpicrin, and is believed to be a derivative of the hypothetical normal carbonic acid, C.(OH) ₄ .

Orthocenter noun [ Ortho- + center .] (Geom.) That point in which the three perpendiculars let fall from the angles of a triangle upon the opposite sides, or the sides produced, mutually intersect.

Orthoceras noun [ New Latin , from Greek 'orqo`s straight + ... a horn.] (Paleon.) An extinct genus of Paleozoic Cephalopoda, having a long, straight, conical shell. The interior is divided into numerous chambers by transverse septa.

Orthoceratite noun [ Ortho- + Greek ..., ..., a horn.] (Zoology) An orthoceras; also, any fossil shell allied to Orthoceras.

Orthoclase noun [ Ortho- + Greek ... to break.] (Min.) Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar .

Orthoclastic adjective (Crystallog.) Breaking in directions at right angles to each other; -- said of the monoclinic feldspars.

Orthodiagonal noun [ Ortho- + diagonal .] (Crystallog.) The diagonal or lateral axis in a monoclinic crystal which is at right angles with the vertical axis.

Orthodome noun [ Ortho- + dome .] (Crystallog.) See the Note under Dome , 4.

Orthodox adjective [ Latin orthodoxus , Greek 'orqo`doxos ; 'orqo`s right, true + do`xa opinion, dokei^n to think, seem; confer French orthodoxe . See Ortho- , Dogma .]
1. Sound in opinion or doctrine, especially in religious doctrine; hence, holding the Christian faith; believing the doctrines taught in the Scriptures; -- opposed to heretical and heterodox ; as, an orthodox Christian.

2. According or congruous with the doctrines of Scripture, the creed of a church, the decree of a council, or the like; as, an orthodox opinion, book, etc.

3. Approved; conventional.

He saluted me on both cheeks in the orthodox manner.

H. R. Haweis.

» The term orthodox differs in its use among the various Christian communions. The Greek Church styles itself the "Holy Orthodox Apostolic Church," regarding all other bodies of Christians as more or less heterodox. The Roman Catholic Church regards the Protestant churches as heterodox in many points. In the United States the term orthodox is frequently used with reference to divergent views on the doctrine of the Trinity. Thus it has been common to speak of the Trinitarian Congregational churches in distinction from the Unitarian, as Orthodox . The name is also applied to the conservative, in distinction from the "liberal", or Hicksite, body in the Society of Friends. Schaff-Herzog Encyc.

Orthodoxal adjective Pertaining to, or evincing, orthodoxy; orthodox. [ R.] Milton.

Orthodoxality noun Orthodoxness. [ R.]

Orthodoxally adverb Orthodoxly. [ R.] Milton

Orthodoxastical adjective Orthodox. [ Obsolete]

Orthodoxical adjective Pertaining to, or evincing, orthodoxy; orthodox.

Orthodoxly adverb In an orthodox manner; with soundness of faith. Sir W. Hamilton.

Orthodoxness noun The quality or state of being orthodox; orthodoxy. Waterland.