Webster's Dictionary, 1913

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Osteology noun [ Osteo- + -logy : confer French ostéologie .] The science which treats of the bones of the vertebrate skeleton.

Osteolysis noun [ New Latin osteo- + Greek ... a loosing.] Softening and absorption of bone. -- Os`te*o*lyt"ic adjective

Osteoma noun ; plural Osteomata . [ New Latin See Osteo- , and - oma .] (Medicine) A tumor composed mainly of bone; a tumor of a bone.

Osteomalacia noun [ New Latin , from Greek ... bone + ... softness.] (Medicine) A disease of the bones, in which they lose their earthy material, and become soft, flexible, and distorted. Also called malacia .

Osteomanty noun [ Osteo- Greek ... divination.] Divination by means of bones. [ R.]

Osteomere noun [ Osteo- + -mere .] (Anat.) An osteocomma. Owen.

Osteopath noun A practitioner of osteopathy.

Osteopathic adjective (Medicine) Of or pertaining to osteopathy. -- Os`te*o*path"ic*al*ly adverb

Osteopathist noun One who practices osteopathy; an osteopath.

Osteopathy noun [ Osteo- + Greek ... suffering.] (Medicine) (a) Any disease of the bones. [ R.] (b) A system of treatment based on the theory that diseases are chiefly due to deranged mechanism of the bones, nerves, blood vessels, and other tissues, and can be remedied by manipulations of these parts.

Osteoperiostitis noun [ New Latin ; osteo- + periost eum + -itis .] (Medicine) Inflammation of a bone and its periosteum.

Osteophone noun [ Greek ... bone + ... voice.] An instrument for transmission of auditory vibrations through the bones of the head, so as to be appreciated as sounds by persons deaf from causes other than those affecting the nervous apparatus of hearing.

Osteoplast noun [ Osteo- + Greek ... to form.] (Anat.) An osteoblast.

Osteoplastic adjective [ Osteo- + -plastic .]


1. (Physiol.) Producing bone; as, osteoplastic cells.

2. (Medicine) Of or pertaining to the replacement of bone; as, an osteoplastic operation.

Osteoplasty noun [ Osteo- + -plasty .] (Medicine) An operation or process by which the total or partial loss of a bone is remedied. Dunglison.

Osteoporosis noun [ New Latin ; osteo- + Greek ... pore.] (Med. & Physiol.) An absorption of bone so that the tissue becomes unusually porous.

Osteopterygious adjective [ Osteo- Greek ... a fin.] (Zoology) Having bones in the fins, as certain fishes.

Osteosarcoma noun ; plural Osteosarcomata . [ New Latin See Osteo- , and sarcoma .] (Medicine) A tumor having the structure of a sacroma in which there is a deposit of bone; sarcoma connected with bone.

Osteosclerosis noun [ New Latin ; osteo- + sclerosis .] Abnormal hardness and density of bone.

Osteotome noun [ Osteo- + Greek ....] (Surg.) Strong nippers or a chisel for dividing bone.

Osteotomist noun One skilled in osteotomy.

Osteotomy noun
1. The dissection or anatomy of bones; osteology.

2. (Surg.) The operation of dividing a bone or of cutting a piece out of it, -- done to remedy deformity, etc.

Osteozoa noun plural [ New Latin , from Greek ... a bone + zo^,on an animal.] (Zoology) Same as Vertebrata .

Ostiary noun ; plural -ries . [ Latin ostium door, entrance. See Usher .]
1. The mouth of a river; an estuary. [ R.] Sir T. Browne.

2. One who keeps the door, especially the door of a church; a porter. N. Bacon.

Ostic adjective [ From North American Indian oshtegwon a head.] Pertaining to, or applied to, the language of the Tuscaroras, Iroquois, Wyandots, Winnebagoes, and a part of the Sioux Indians. Schoolcraft.

Ostiole noun [ Latin ostiolum a little door, dim. of ostium a door: confer French ostiole .] (Botany) (a) The exterior opening of a stomate. See Stomate . (b) Any small orifice.

Ostitis noun [ New Latin ] (Medicine) See Osteitis .

Ostium noun ; plural Ostia . [ Latin ] (Anat.) An opening; a passage.

Ostler noun See Hostler .

Ostleress noun A female ostler. [ R.] Tennyson.

Ostlery noun See Hostelry . [ Obsolete]

Ostmen noun plural ; sing. Ostman . [ See East , and Man .] East men; Danish settlers in Ireland, formerly so called. Lyttelton.

Ostosis noun [ New Latin , from Greek ... a bone.] (Physiol.) Bone formation; ossification. See Ectostosis , and Endostosis .

Ostracea noun plural [ New Latin , from Greek ... shell of a testacean.] (Zoology) A division of bivalve mollusks including the oysters and allied shells.

Ostracean noun [ Latin ostrea an oyster. See Oyster .] (Zoology) Any one of a family of bivalves, of which the oyster is the type.

Ostracion noun [ New Latin , from Greek ... small shell.] (Zoology) A genus of plectognath fishes having the body covered with solid, immovable, bony plates. It includes the trunkfishes.

Ostraciont noun (Zoology) A fish of the genus Ostracion and allied genera.

Ostracism noun [ Greek ..., from ... to ostracize. See Ostracize .]
1. (Gr. Antiq.) Banishment by popular vote, -- a means adopted at Athens to rid the city of a person whose talent and influence gave umbrage.

2. Banishment; exclusion; as, social ostracism .

Public envy is as an ostracism , that eclipseth men when they grow too great.
Bacon.

Sentenced to a perpetual ostracism from the . . . confidence, and honors, and emoluments of his country.
A. Hamilton.

Ostracite noun (Paleon.) A fossil oyster.

Ostracize transitive verb [ imperfect & past participle Ostracized ; present participle & verbal noun Ostracizing .] [ Greek ..., from ... a tile, a tablet used in voting, a shell; confer ... oyster, ... bone. Confer Osseous , Oyster .]
1. (Gr. Antiq.) To exile by ostracism; to banish by a popular vote, as at Athens. Grote.

2. To banish from society; to put under the ban; to cast out from social, political, or private favor; as, he was ostracized by his former friends. Marvell.

Ostracoda noun plural (Zoology) Ostracoidea.

Ostracodermi noun plural [ New Latin , from Greek ... shell of a testacean + ... skin.] (Zoology) A suborder of fishes of which Ostracion is the type.

Ostracoid adjective (Zoology) Of or pertaining to the Ostracoidea. -- noun One of the Ostracoidea.

Ostracoidea noun plural [ New Latin , from Greek ... shell of a testacean + -oid .] (Zoology) An order of Entomostraca possessing hard bivalve shells. They are of small size, and swim freely about. [ Written also Ostracoda .]

Ostrea noun [ Latin , an oyster.] (Zoology) A genus of bivalve Mollusca which includes the true oysters.

Ostreaceous adjective [ Latin ostrea an oyster. See Oyster .] (Zoology) Of or pertaining to an oyster, or to a shell; shelly.

The crustaceous or ostreaceous body.
Cudworth.

Ostreaculture noun The artificial cultivation of oysters.

Ostreophagist noun [ Greek ... an oyster + ... to eat.] One who feeds on oysters.

Ostrich noun [ Middle English ostriche , ostrice , Old French ostruche , ostruce , French autruche , Latin avis struthio ; avis bird + struthio ostrich, from Greek ..., from ... bird, sparrow. Confer Aviary , Struthious .] [ Formerly written also estrich .] (Zoology) A large bird of the genus Struthio , of which Struthio camelus of Africa is the best known species. It has long and very strong legs, adapted for rapid running; only two toes; a long neck, nearly bare of feathers; and short wings incapable of flight. The adult male is about eight feet high.

» The South African ostrich ( Struthio australis ) and the Asiatic ostrich are considered distinct species by some authors. Ostriches are now domesticated in South Africa in large numbers for the sake of their plumes. The body of the male is covered with elegant black plumose feathers, while the wings and tail furnish the most valuable white plumes.

Ostrich farm , a farm on which ostriches are bred for the sake of their feathers, oil, eggs, etc. -- Ostrich farming , the occupation of breeding ostriches for the sake of their feathers, etc. -- Ostrich fern (Botany) a kind of fern ( Onoclea Struthiopteris ), the tall fronds of which grow in a circle from the rootstock. It is found in alluvial soil in Europe and North America.

Ostriferous adjective [ Latin ostrifer ; ostrea oyster + ferre .] Producing oysters; containing oysters.