Odontoblast O·don"to·blast noun [
Odonto- +
-blast .]
1. (Anat.) One of the more or less columnar cells on the outer surface of the pulp of a tooth; an odontoplast. They are supposed to be connected with the formation of dentine. 2. (Zoology) One of the cells which secrete the chitinous teeth of Mollusca.
Odontocete O·don`to·ce"te 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 O`don·tog"e·ny noun [
Odonto- + root of Greek ... to be born: cf: French
odontogénie .]
(Physiol.) Generetion, or mode of development, of the teeth.
Odontograph O·don"to·graph noun [
Odonto- +
-graph .]
An instrument for marking or laying off the outlines of teeth of gear wheels.
Odontographic O·don`to·graph"ic adjective Of or pertaining to odontography.
Odontography O`don·tog"ra·phy noun A description of the teeth.
Odontoid O·don"toid 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 O`don·tol"cae 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 O·don"to·lite 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 O`don·tol"o·gy noun [
Odonto- +
-logy : confer French
odontologie .]
The science which treats of the teeth, their structure and development.
Odontophora O`don·toph"o·ra noun plural [ New Latin See
Odontophore .]
(Zoology) Same as Cephalophora .
Odontophore O·don"to·phore 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 O`don·toph"o·rous adjective (Zoology) Having an odontophore.
Odontoplast O·don"to·plast noun [
Odonto- + Greek ... to form, mold.]
(Anat.) An odontoblast.
Odontopteryx O`don·top"te·ryx 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 O·don`tor·ni·"thes 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 O·don"to·stom"a·tous adjective [
Odonto- + Greek ..., ..., the mouth.]
(Zoology) Having toothlike mandibles; -- applied to certain insects.
Odontotormae O·don`to·tor"mae 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 O"dor 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 O"dor·a·ment noun [ Latin
odoramentum . See
Odorate .]
A perfume; a strong scent. [ Obsolete]
Burton.
Odorant O"dor·ant adjective [ Latin
odorans ,
-antis , present participle]
Yielding odors; fragrant. Holland.
Odorate O"dor·ate adjective [ Latin
odoratus , past participle of
odorare to perfume, from
odor odor.]
Odorous. [ Obos.]
Bacon.
Odorating O"dor·a`ting adjective Diffusing odor or scent; fragrant.
Odoriferous O`dor·if"er·ous 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 O"dor·ine noun (Chemistry) A pungent oily substance obtained by redistilling bone oil. [ Obsolete]
Odorless O"dor·less adjective Free from odor.
Odorous O"dor·ous 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 Ods interj. A corruption of God's ; -- formerly used in oaths and ejaculatory phrases. "
Ods bodikin." "
Ods pity."
Shak.
Odyl, Odyle Od"yl, Od"yle noun [ Greek ..., passage + ... matter or material.]
(Physics) See Od . [ Archaic].
Odylic O·dyl"ic adjective (Physics) Of or pertaining to odyle; odic; as, odylic force. [ Archaic]
Odyssey Od"ys·sey 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 Œ (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 Œ"coid 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 Œ·col"o·gy noun [ Greek ... house +
-logy .]
(Biol.) The various relations of animals and plants to one another and to the outer world.
OEconomical Œ`co·nom"ic·al adjective See Economical .
OEconomics Œ`co·nom"ics noun See Economics .
OEconomy Œ·con"o·my noun See Economy .
OEcumenical Œc`u·men"ic·al adjective See Ecumenical .
OEdema Œ·de"ma 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 Œ·dem"a·tous adjective (Medicine) Pertaining to, or of the nature of, edema; affected with edema.
OEil-de-bœuf Œil`-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 Œil`-de-per`drix" 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 Œ·il"iad 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 Œ"let noun [ See
Eyelet .]
An eye, bud, or shoot, as of a plant; an oilet. [ Obsolete]
Holland.
OEnanthate Œ·nan"thate noun (Chemistry) A salt of the supposed œnanthic acid.
OEnanthic Œ·nan"thic 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 Œ·nan"thol 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 Œ·nan"thone noun [
œnanthic +
-one ]
(Chemistry) The ketone of œnanthic acid.
OEnanthyl Œ·nan"thyl noun [
œnnthic +
-yl .]
(Chemistry) A hydrocarbon radical formerly supposed to exist in œnanthic acid, now known to be identical with heptyl.
OEnanthylate Œ·nan"thyl·ate noun (Chemistry) A salt of œnanthylic acid; as, potassium œnanthylate .
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