Odontocete noun plural [ New Latin , from Greek 'odoy`s , 'odo`ntos , a tooth + ... a whale.] (Zoology) A subdivision of Cetacea, including the sperm whale, dolphins, etc.; the toothed whales.

Odontogeny noun [ Odonto- + root of Greek ... to be born: cf: French odontogénie .] (Physiol.) Generetion, or mode of development, of the teeth.

Odontograph noun [ Odonto- + -graph .] An instrument for marking or laying off the outlines of teeth of gear wheels.

Odontographic adjective Of or pertaining to odontography.

Odontography noun A description of the teeth.

Odontoid adjective [ Greek ...; 'odoy`s , 'odo`ntos , a tooth + ... form: confer French odontoïde .] (Anat.) (a) Having the form of a tooth; toothlike. (b) Of or pertaining to the odontoid bone or to the odontoid process.

Odontoid bone (Anat.) , a separate bone, in many reptiles, corresponding to the odontoid process. - - Odontoid process , or Odontoid peg (Anat.) , the anterior process of the centrum of the second vertebra, or axis, in birds and mammals. See Axis .

Odontolcae noun plural [ New Latin , from Greek 'odoy`s , 'odo`ntos , a tooth + ... a furrow.] (Paleon.) An extinct order of ostrichlike aquatic birds having teeth, which are set in a groove in the jaw. It includes Hesperornis , and allied genera. See Hesperornis . [ Written also Odontholcae , and Odontoholcae .]

Odontolite noun [ Odonto- + -lite .] (Min.) A fossil tooth colored a bright blue by phosphate of iron. It is used as an imitation of turquoise, and hence called bone turquoise .

Odontology noun [ Odonto- + -logy : confer French odontologie .] The science which treats of the teeth, their structure and development.

Odontophora noun plural [ New Latin See Odontophore .] (Zoology) Same as Cephalophora .

Odontophore noun [ Odonto- + Greek ... to bear.] (Zoology) A special structure found in the mouth of most mollusks, except bivalves. It consists of several muscles and a cartilage which supports a chitinous radula, or lingual ribbon, armed with teeth. Also applied to the radula alone. See Radula .

Odontophorous adjective (Zoology) Having an odontophore.

Odontoplast noun [ Odonto- + Greek ... to form, mold.] (Anat.) An odontoblast.

Odontopteryx noun [ New Latin , from Greek 'odoy`s , 'odo`ntos , a tooth + pte`ryx a wing.] (Paleon.) An extinct Eocene bird having the jaws strongly serrated, or dentated, but destitute of true teeth. It was found near London.

Odontornithes noun plural [ New Latin , from Greek 'odoy`s , 'odo`ntos , a tooth + ..., ..., a bird.] (Paleon.) A group of Mesozoic birds having the jaws armed with teeth, as in most other vertebrates. They have been divided into three orders: Odontolcæ, Odontotormæ, and Saururæ.

Odontostomatous adjective [ Odonto- + Greek ..., ..., the mouth.] (Zoology) Having toothlike mandibles; -- applied to certain insects.

Odontotormae noun plural [ New Latin , from 'odoy`s , 'odo`ntos , a tooth + ... a socket.] (Paleon.) An order of extinct toothed birds having the teeth in sockets, as in the genus Ichthyornis. See Ichthyornis .

Odor noun [ Middle English odor , odour , Old French odor , odour , French odeur , from Latin odor ; akin to olere to smell, Greek ..., Lithuanian ... Confer Olfactory , Osmium , Ozone , Redolent .] [ Written also odour .] Any smell, whether fragrant or offensive; scent; perfume.

Meseemed I smelt a garden of sweet flowers,
That dainty odors from them threw around.

Spenser.

To be in bad odor , to be out of favor, or in bad repute.

Odorament noun [ Latin odoramentum . See Odorate .] A perfume; a strong scent. [ Obsolete] Burton.

Odorant adjective [ Latin odorans , -antis , present participle] Yielding odors; fragrant. Holland.

Odorate adjective [ Latin odoratus , past participle of odorare to perfume, from odor odor.] Odorous. [ Obos.] Bacon.

Odorating adjective Diffusing odor or scent; fragrant.

Odoriferous adjective [ Latin odorifer ; odor odor + ferre to bear. See Odoe , and 1st Bear .] Bearing or yielding an odor; perfumed; usually, sweet of scent; fragrant; as, odoriferous spices, particles, fumes, breezes. Milton.

-- O`dor*if"er*ous*ly , adverb -- O`dor*if"er*ous*ness , noun

Odorine noun (Chemistry) A pungent oily substance obtained by redistilling bone oil. [ Obsolete]

Odorless adjective Free from odor.

Odorous adjective [ Written also odourous .] [ Latin odorus , from odor odor: confer Old French odoros , odoreux .] Having or emitting an odor or scent, esp. a sweet odor; fragrant; sweet-smelling. " Odorous bloom." Keble.

Such fragrant flowers do give most odorous smell.

Spenser.

-- O"dor*ous*ly , adverb -- O"dor*ous*ness , noun

Ods interj. A corruption of God's ; -- formerly used in oaths and ejaculatory phrases. " Ods bodikin." " Ods pity." Shak.

Odyl, Odyle noun [ Greek ..., passage + ... matter or material.] (Physics) See Od . [ Archaic].

Odylic adjective (Physics) Of or pertaining to odyle; odic; as, odylic force. [ Archaic]

Odyssey noun [ Latin Odyssea , Greek ..., from ... Ulysses: confer French Odyssée .] An epic poem attributed to Homer, which describes the return of Ulysses to Ithaca after the siege of Troy.

OE (ē), a diphthong, employed in the Latin language, and thence in the English language, as the representative of the Greek diphthong oi . In many words in common use, e alone stands instead of œ. Classicists prefer to write the diphthong oe separate in Latin words.

OEcoid noun [ Greek ... a house + -oid .] (Anat.) The colorless porous framework, or stroma, of red blood corpuscles from which the zooid, or hemoglobin and other substances of the corpuscles, may be dissolved out.

OEcology noun [ Greek ... house + -logy .] (Biol.) The various relations of animals and plants to one another and to the outer world.

OEconomical adjective See Economical .

OEconomics noun See Economics .

OEconomy noun See Economy .

OEcumenical adjective See Ecumenical .

OEdema noun [ New Latin , from Greek ... a swelling, tumor, from ... to swell.] (Medicine) A swelling from effusion of watery fluid in the cellular tissue beneath the skin or mucous membrance; dropsy of the subcutaneous cellular tissue. [ Written also edema .]

OEdematous adjective (Medicine) Pertaining to, or of the nature of, edema; affected with edema.

OEil-de-bœuf noun ; plural Œils-de-bœuf . [ French, lit., eye of an ox.] (Architecture) A circular or oval window; -- generally used of architecture of the 17th and 18th centuries. A famous room in the palace of Versailles bears this name, from the oval window opening into it.

OEil-de-perdrix adjective [ French, lit., eye of a partridge.]
1. (Ornamental Art) Characterized by, or decorated with, small round points, spots, or rings; as, œil-de-perdrix pattern.

2. Having a brownish red color; -- used esp. of light-colored red wine.

OEiliad Œil"lade` noun [ French œillade , from œel eye. See Eyelent .] A glance of the eye; an amorous look. [ Obsolete]

She gave strange œillades and most speaking looks.

Shak.

OElet noun [ See Eyelet .] An eye, bud, or shoot, as of a plant; an oilet. [ Obsolete] Holland.

OEnanthate noun (Chemistry) A salt of the supposed œnanthic acid.

OEnanthic adjective [ Greek ... the first shoot of the vine, the vine blossom, the vine; ... the vine + ... bloom, ... flower.] (Chemistry) Having, or imparting, the odor characteristic of the bouquet of wine; specifically used, formerly, to designate an acid whose ethereal salts were supposed to occasion the peculiar bouquet, or aroma, of old wine. Confer Œnanthylic .

Œnanthic acid , an acid obtained from œnanthic ether by the action of alkalies. -- Œnanthic ether , an ethereal substance (not to be confused with the bouquet, or aroma, of wine) found in wine lees, and consisting of a complex mixture of the ethereal salts of several of the higher acids of the acetic acid series. It has an ethereal odor, and it used in flavoring artificial wines and liquors. Called also oil of wine . See Essential oil , under Essential .

OEnanthol noun [ œnanthy lic + Latin ole um oil.] (Chemistry) An oily substance obtained by the distillation of castor oil, recognized as the aldehyde of œnanthylic acid, and hence called also œnanthaldehyde .

OEnanthone noun [ œnanthic + -one ] (Chemistry) The ketone of œnanthic acid.

OEnanthyl noun [ œnnthic + -yl .] (Chemistry) A hydrocarbon radical formerly supposed to exist in œnanthic acid, now known to be identical with heptyl.

OEnanthylate noun (Chemistry) A salt of œnanthylic acid; as, potassium œnanthylate .

OEnanthylic adjective (Chemistry) Pertaining to, derived from, or containing, œnanthyl; specifically, designating an acid formerly supposed to be identical with the acid in œnanthic ether, but now known to be identical with heptoic acid.