Ocherous, Ochreous O"cher·ous, O"chre·ous adjective [ Confer French
ocreux .]
Of or pertaining to ocher; containing or resembling ocher; as, ocherous matter; ocherous soil.
Ochery O"cher·y adjective Ocherous. [ Written also
ochrey ,
ochry .]
Ochimy Och`i·my noun [ Obsolete]
See Occamy .
Ochlesis Och·le"sis noun [ New Latin , from Greek ... disturbance, from ... crowd, mob.]
(Medicine) A general morbid condition induced by the crowding together of many persons, esp. sick persons, under one roof. G. Gregory.
Ochlocracy Och·loc"ra·cy noun [ Greek ...; ... the populace, multitude + ... to be strong, to rule, ... strength: confer French
ochlocratie .]
A form of government by the multitude; a mobocracy. Hare.
Ochlocratic, Ochlocratical Och`lo·crat`ic, Och`lo·crat`ic·al adjective Of or pertaining to ochlocracy; having the form or character of an ochlocracy; mobocratic. --
Och`lo*crat"ic*al*ly ,
adverb
Ochraceous O·chra"ceous adjective Ocherous.
Ochre O"chre noun (Min.) See Ocher .
Ochrea O"chre·a noun ;
plural Ochreĉe . [ Latin ]
1. (Antiq.) A greave or legging. 2. (Botany) A kind of sheath formed by two stipules united round a stem.
Ochreate, Ochreated O"chre·ate, O"chre·a`ted adjective 1. Wearing or furnished with an ochrea or legging; wearing boots; booted. A scholar undertook . . . to address himself ochreated unto the vice chancellor.
Fuller. 2. (Botany) Provided with ochrea, or sheathformed stipules, as the rhubarb, yellow dock, and knotgrass.
Ochreous O"chre·ous adjective See Ocherous .
Ochrey O"chrey adjective See Ochery .
Ochroleucous Och`ro·leu"cous adjective [ Greek ... ocher + ... white.]
Yellowish white; having a faint tint of dingy yellow. Gray.
Ochry O"chry adjective See Ochery .
Ochymy Och"y·my noun [ Obsolete]
See Occamy .
Ocra O"cra noun (Botany) See Okra .
Ocrea O"cre·a noun [ Latin ]
See Ochrea .
Ocreate, Ocreated O"cre·ate, O"cre·a"ted adjective [ See
Ochrea .]
Same as Ochreate , Ochreated .
Octa- Oc"ta- A prefix meaning eight . See Octo- .
Octachord Oc"ta·chord noun [ Greek ... with eight strings; ... (for ... eight) + ... string, chord: confer French
octacorde .]
(Mus.) An instrument of eight strings; a system of eight tones. [ Also written
octochord .]
Octad Oc"tad noun [ Greek ..., ..., the number eight.]
(Chemistry) An atom or radical which has a valence of eight, or is octavalent.
Octaedral Oc`ta·e"dral adjective See Octahedral .
Octaemeron Oc`ta·em"e·ron noun [ New Latin , from Greek ..., neut. of ... of the eighth day.]
(Eccl.) A fast of eight days before a great festival. Shipley.
Octagon Oc"ta·gon noun [ Greek ... eight- cornered; ... (for ... eight) + ... an angle: confer French
cctogone .]
1. (Geom.) A plane figure of eight sides and eight angles. 2. Any structure (as a fortification) or place with eight sides or angles. Regular octagon ,
one in which the sides are all equal, and the angles also are all equal.
Octagonal Oc·tag"o·nal adjective Having eight sides and eight angles.
Octagynous Oc·tag"y·nous adjective [
Octa- + Greek ... wife.]
(Botany) Having eight pistils or styles; octogynous.
Octahedral Oc`ta·he"dral adjective [ See
Octahedron .]
Having eight faces or sides; of, pertaining to, or formed in, octahedrons; as, octahedral cleavage. Octahedral borax (Chemistry) ,
borax obtained from a saturated solution in octahedral crystals, which contain five molecules of water of crystallization; distinguished from common or prismatic borax . --
Octahedral iron ore (Min.) ,
magnetite.
Octahedrite Oc`ta·he"drite noun (Min.) Titanium dioxide occurring in acute octahedral crystals.
Octahedron Oc`ta·he"dron noun [ Greek ..., from ... eight-side; ... (for ... eight) + ... seat, base, from ... to sit.]
(Geom.) A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.
Octamerous Oc·tam"er·ous adjective [
Octa- + Greek ... part.]
(Biol.) Having the parts in eights; as, an octamerous flower; octamerous mesenteries in polyps.
Octameter Oc·tam"e·ter noun [ Confer L.
octameter in eight feet. See
Octa- , and
meter .]
(Pros.) A verse containing eight feet; as, --
Deep\'b6 in
Octander Oc·tan"der noun One of the Octandria.
Octandria Oc·tan"dri·a noun plural [ New Latin , from Greek ... (for ... eight) + ..., ..., male, man.]
(Botany) A Linnĉan class of plants, in which the flowers have eight stamens not united to one another or to the pistil.
Octandrian, Octandrous Oc·tan"dri·an, Oc·tan"drous adjective (Botany) Of or pertaining to the Octandria; having eight distinct stamens.
Octane Oc"tane noun [ See
Octa- ] .
(Chemistry) Any one of a group of metametric hydrocarcons (C 8 H 18 ) of the methane series. The most important is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of benzene or ligroin.
Octangular Oc·tan"gu·lar adjective [ Latin
octangulus eight-cornered;
octo eight +
angulus angle.]
Having eight angles; eight-angled. --
Oc*tan"gu*lar*ness ,
noun
Octant Oc"tant noun [ Latin
octans ,
- antis . from
octo eight. See
Octave .]
1. (Geom.) The eighth part of a circle; an arc of 45 degrees. 2. (Astron. & Astrol.) The position or aspect of a heavenly body, as the moon or a planet, when half way between conjunction, or opposition, and quadrature, or distant from another body 45 degrees. 3. An instrument for measuring angles (generally called a quadrant ), having an arc which measures up to 9O°, but being itself the eighth part of a circle. Confer Sextant . 4. (Math. & Crystallog.) One of the eight parts into which a space is divided by three coördinate planes.
Octapla Oc"ta·pla noun ; etymol.
plural , but syntactically
sing. [ New Latin , from Greek ... (for ... eight) +
-pla , as in English
hexapla ; confer Greek ... eightfold.]
A portion of the Old Testament prepared by Origen in the 3d century, containing the Hebrew text and seven Greek versions of it, arranged in eight parallel columns.
Octaroon Oc`ta·roon" noun See Octoroon .
Octastyle Oc"ta·style adjective See Octostyle .
Octateuch Oc"ta·teuch noun [ Latin
octateuchus , Greek ....]
A collection of eight books; especially, the first eight books of the Old Testament. [ R.]
Octavalent Oc·tav"a·lent adjective [
Octa- + Latin
valens , present participle See
Valence .]
(Chemistry) Having a valence of eight; capable of being combined with, exchanged for, or compared with, eight atoms of hydrogen; -- said of certain atoms or radicals.
Octave Oc"tave noun [ French, from Latin
octava an eighth, from
octavus eighth, from
octo eight. See
Eight , and confer
Octavo ,
Utas .]
1. The eighth day after a church festival, the festival day being included; also, the week following a church festival. "The
octaves of Easter."
Jer. Taylor. 2. (Mus.) (a) The eighth tone in the scale; the interval between one and eight of the scale, or any interval of equal length; an interval of five tones and two semitones. (b) The whole diatonic scale itself. » The ratio of a musical tone to its
octave above is 1:2 as regards the number of vibrations producing the tones.
3. (Poet.) The first two stanzas of a sonnet, consisting of four verses each; a stanza of eight lines. With mournful melody it continued this octave .
Sir P. Sidney. Double octave .
(Mus.) See under Double . --
Octave flute (Mus.) ,
a small flute, the tones of which range an octave higher than those of the German or ordinary flute; -- called also piccolo . See Piccolo . 4. A small cask of wine, the eighth part of a pipe.
Octave Oc"tave adjective Consisting of eight; eight. Dryden.
Octavo Oc·ta"vo noun ;
plural Octavos . [ Latin
in octavo ;
in in +
octavo , abl. of
octavus . See
Octave .]
A book composed of sheets each of which is folded into eight leaves; hence, indicating more or less definitely a size of book so made; -- usually written 8vo or 8°.
Octavo Oc·ta"vo adjective Having eight leaves to a sheet; as, an octavo form, book, leaf, size, etc.
Octene Oc"tene noun [ See
Octo- .]
(Chemistry) Same as Octylene .
Octennial Oc·ten"ni·al adjective [ Latin
octennium a period of eight years;
octo eight +
annus year.]
Happening every eighth year; also, lasting a period of eight years. Johnson. --
Oc*ten"ni*al*ly ,
adverb
Octet Oc·tet" noun [ From Latin
octo eight, like English
duet , from Latin
duo . See
Octave .]
(Mus.) A composition for eight parts, usually for eight solo instruments or voices.
Octic Oc"tic adjective [
Octo- +
- ic .]
(Math.) Of the eighth degree or order. --
noun (Alg.) A quantic of the eighth degree.
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