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. (Zoöl.) One of the cells which secrete the chitinous teeth of
Mollusca.
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||O*don`to*ce"te (?), n. pl. [NL., from Gr. 'odoy`s, 'odo`ntos, a tooth
||+ &?; a whale.] (Zoöl.) A subdivision of Cetacea, including the sperm
||whale, dolphins, etc.; the toothed whales.
O`don*tog"e*ny (?), n. [Odonto- + root of Gr. &?; to be born: cf: F.
odontogénie.] (Physiol.) Generetion, or mode of development, of the
teeth.
O*don"to*graph (?), n. [Odonto- + -graph.] An instrument for marking or
laying off the outlines of teeth of gear wheels.
O*don`to*graph"ic (?), a. Of or pertaining to odontography.
O`don*tog"ra*phy (?), n. A description of the teeth.
O*don"toid (?), a. [Gr. &?;; 'odoy`s, 'odo`ntos, a tooth + &?; form:
cf.F. 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.
||O`don*tol"cae (?), n. pl. [NL., from Gr. '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.]
O*don"to*lite (?), n. [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.
O`don*tol"o*gy (?), n. [Odonto- + -logy: cf.F. odontologie.] The
science which treats of the teeth, their structure and development.
||O`don*toph"o*ra (?), n. pl. [NL. See Odontophore.] (Zoöl.) Same as
||Cephalophora.
O*don"to*phore (?), n. [Odonto- + Gr. &?; to bear.] (Zoöl.) 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.
O`don*toph"o*rous (?), a. (Zoöl.) Having an odontophore.
O*don"to*plast (?), n. [Odonto- + Gr. &?; to form, mold.] (Anat.) An
odontoblast.
||O`don*top"te*ryx (?), n. [NL., fr. Gr. '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.
||O*don`tor*ni*"thes (?), n. pl. [NL., fr.Gr. '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.
O*don"to*stom"a*tous (?), a. [Odonto- + Gr. &?;, &?;, the mouth.]
(Zoöl.) Having toothlike mandibles; -- applied to certain insects.
||O*don`to*tor"mae (?), n. pl. [NL., fr. '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.
O"dor (?), n. [OE. odor, odour, OF. odor, odour, F. odeur, fr. L. odor;
akin to olere to smell, Gr. &?;, Lith. &?; Cf. 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.
O"dor*a*ment (?), n. [L. odoramentum. See Odorate.] A perfume; a strong
scent. [Obs.] Burton.
O"dor*ant (?), a. [L. odorans, -antis, p. pr.] Yielding odors;
fragrant. Holland.
O"dor*ate (?), a. [L. odoratus, p. p. of odorare to perfume, fr. odor
odor.] Odorous. [Obos.] Bacon.
O"dor*a`ting (?), a. Diffusing odor or scent; fragrant.
O`dor*if"er*ous (?), a. [L. 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, adv. -- O`dor*if"er*ous*ness, n.
O"dor*ine (?), n. (Chem.) A pungent oily substance obtained by
redistilling bone oil. [Obs.]
O"dor*less, a. Free from odor.
O"dor*ous (?), a. [Written also odourous.] [L. odorus, fr. odor odor:
cf. OF. 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, adv. -- O"dor*ous*ness, n.
Ods (?), interj. A corruption of God's; -- formerly used in oaths and
ejaculatory phrases. "Ods bodikin." "Ods pity." Shak.
{ Od"yl, Od"yle } (?), n. [Gr. &?;, passage + &?; matter or material.]
(Physics) See Od. [Archaic].
O*dyl"ic (?), a. (Physics) Of or pertaining to odyle; odic; as, odylic
force. [Archaic]
Od"ys*sey (?), n. [L. Odyssea, Gr. &?;, fr. &?; Ulysses: cf.F.
Odyssée.] An epic poem attributed to Homer, which describes the return
of Ulysses to Ithaca after the siege of Troy.
Π(), 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.
Œ"coid (?), n. [Gr. &?; 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.
Œ*col"o*gy (?), n. [Gr.&?; house + -logy.] (Biol.) The various
relations of animals and plants to one another and to the outer world.
Œ`co*nom"ic*al (?), a. See Economical.
Œ`co*nom"ics (?), n. See Economics.
Œ*con"o*my (?), n. See Economy.
Œc`u*men"ic*al (?), a. See Ecumenical.
||Œ*de"ma (?), n. [NL., from Gr. &?; a swelling, tumor, fr. &?; to
||swell.] (Med.) 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.]
Œ*dem"a*tous (?), a. (Med.) Pertaining to, or of the nature of, edema;
affected with edema.
{ Œ*il"iad (?), ||Œil"lade` (?), } n. [F. œillade, fr. œel eye. See
Eyelent.] A glance of the eye; an amorous look. [Obs.]
She gave strange œillades and most speaking looks.
Shak.
Œ"let (?), n. [See Eyelet.] An eye, bud, or shoot, as of a plant; an
oilet. [Obs.] Holland.
Œ*nan"thate (?), n. (Chem.) A salt of the supposed œnanthic acid.
Œ*nan"thic (?), a. [Gr. &?; the first shoot of the vine, the vine
blossom, the vine; &?; the vine + &?; bloom, &?; flower.] (Chem.)
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.
Cf. 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.
Œ*nan"thol (?), n. [œnanthylic + L. oleum oil.] (Chem.) An oily
substance obtained by the distillation of castor oil, recognized as the
aldehyde of œnanthylic acid, and hence called also œnanthaldehyde.
Œ*nan"thone (?), n. [œnanthic + -one] (Chem.) The ketone of œnanthic
acid.
Œ*nan"thyl (?), n. [œnnthic + -yl.] (Chem.) A hydrocarbon radical
formerly supposed to exist in œnanthic acid, now known to be identical
with heptyl.
Œ*nan"thyl*ate (?), n. (Chem.) A salt of œnanthylic acid; as, potassium
œnanthylate.
Œ`nan*thyl"ic (?), a. (Chem.) 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.
Œ`nan*thyl"i*dene (?), n. (Chem.) A colorless liquid hydrocarbon,
having a garlic odor; heptine.
Œ*nan"thyl*ous (?), a. (Chem.) Of, pertaining to, or designating, an
acid formerly supposed to be the acid of œnanthylic ether, but now
known to be a mixture of higher acids, especially capric acid. [Obs.]
Œ`no*cy"an (?), n. [Gr. &?; wine + &?; a dark-blue substance.] (Chem.)
The coloring matter of red wines.
Œ*nol"o*gy (?), n. [Gr. &?; wine + -logy.] Knowledge of wine,
scientific or practical.
||Œn`o*ma"ni*a (?), n. [NL., fr. Gr. &?; wine + &?; mania.] (Med.) (a)
||Delirium tremens. Rayer. (b) Dipsomania.
Œn"o*mel (?), n. [Gr. &?; wine + &?; honey.] Wine mixed with honey;
mead, [R.]
Œ*nom"e*ter (?), n. [Gr. &?; wine + -meter.] See Alcoholometer.
Œ*noph"i*list (?), n. [Gr. &?; wine + &?; to love.] A lover of wine.
[R.] Thackeray.
Œ`no*thi*on"ic (?), a. [Gr. &?; wine + thionic.] (Chem.) Pertaining to
an acid now called sulphovinic, or ethyl sulphuric, acid.