Ozonation O`zo·na"tion noun (Chemistry) The act of treating with ozone; also, the act of converting into, or producing, ozone; ozonization.
Ozone O"zone noun [ Greek
'o`zwn smelling, present participle of
'o`zein to smell. See
Odor .]
(Chemistry) A colorless gaseous substance (O...) obtained (as by the silent discharge of electricity in oxygen) as an allotropic form of oxygen, containing three atoms in the molecule. It is a streng oxidizer, and probably exists in the air, though by he ordinary tests it is liable to be confused with certain other substances, as hydrogen dioxide, or certain oxides of nitrogen. It derives its name from its peculiar odor, which resembles that of weak chlorine.
Ozone paper O"zone pa"per (Chemistry) Paper coated with starch and potassium iodine. It turns blue when exposed to ozone. >-- also called starch-iodide paper -->
Ozonic O·zon"ic adjective (Chemistry) Pertaining to, resembling, or containing, ozone.
Ozonification O·zo`ni·fi·ca"tion noun [
Ozone + Latin
-ficare to make. See
fy . ]
(Chemistry) The act or process of producing, or of subjecting to the action of, ozone.
Ozonization O`zo·ni·za"tion noun (Chemistry) Ozonation.
Ozonize O"zo·nize transitive verb [
imperfect & past participle Ozonized ;
present participle & verbal noun Ozonizing .]
(Chemistry) (a) To convert into ozone, as oxygen. (b) To treat with ozone.
Ozonizer O"zo·ni`zer noun (Chemistry) An apparatus or agent for the production or application of ozone.
Ozonometer O`zo·nom"e·ter noun [
Ozone +
-meter .]
An instrument for ascertaining the amount of ozone in the atmosphere, or in any gaseous mixture. Faraday.
Ozonometric O`zo·no·met"ric adjective (Chemistry) Pertaining to, or used for, the determination of the amount of ozone; of or relating to ozonometry.
Ozonometry O`zo·nom"e·try noun (Chemistry) The measurement or determination of the quantity of ozone.
Ozonoscope O·zo"no·scope noun [
Ozone +
-scope .]
(Chemistry) An apparatus employed to indicate the presence, or the amount, of ozone.
Ozonoscopic O·zo`no·scop"ic adjective [
Ozone + Greek ... to view.]
(Chemistry) Serving to indicate the presence or the amount of ozone.
Ozonous O"zo·nous adjective Pertaining to or containing, ozone.
Oö O"ö noun [ Hawaiian.]
(Zoology) A beautiful bird ( Moho nobilis ) of the Hawaiian Islands. It yields the brilliant yellow feathers formerly used in making the royal robes. Called also yellow-tufted honeysucker .
Oögenesis O`ö·gen"e·sis noun [ Greek
w,'o`n an egg + English
genesis .]
(Physiol.) The development, or mode of origin, of the ova.
Oögonium O`ö·go"ni·um noun ;
plural Latin
Oögonia , English
Oögoniums . [ New Latin , from Greek
w,'o`n an egg + ... offspring.]
(Botany) A special cell in certain cryptogamous plants containing oöspheres, as in the rockweeds ( Fucus ), and the orders Vaucherieæ and Peronosporeæ .
Oölite O"ö·lite noun [ Greek
w,'o`n an egg +
-lite : confer French
oölithe . So named from its resemblance to the roe of fish.]
(Geol.) A variety of limestone, consisting of small round grains, resembling the roe of a fish. It sometimes constitutes extensive beds, as in the European Jurassic. See the Chart of Geology .
Oölitic O`ö·lit"ic adjective [ Confer F.
oölithique .]
Of or pertaining to oölite; composed of, or resembling, oölite.
Oölogical O`ö·log"ic·al adjective (Zoology) Of or pertaining to oölogy.
Oölogist O·öl"o·gist noun One versed in oölogy.
Oölogy O·öl"o·gy noun [ Greek
w,'o`n an egg +
-logy .]
The science of eggs in relation to their coloring, size, shape, and number.
Oöphore O"ö·phore noun [ Greek ... egg- bearing;
w,'o`n an egg + ... to bear.]
(Botany) An alternately produced form of certain cryptogamous plants, as ferns, mosses, and the like, which bears antheridia and archegonia, and so has sexual fructification, as contrasted with the sporophore , which is nonsexual, but produces spores in countless number. In ferns the oöphore is a minute prothallus; in mosses it is the leafy plant.
Oöphorectomy O`ö·pho·rec"to·my noun [ Greek
w,'o`n egg + ... to bear + ... a cutting out.]
(Surg.) Ovariotomy.
Oöphoric O`ö·phor"ic adjective (Botany) Having the nature of, or belonging to, an oöphore.
Oöphoridium O`ö·pho·rid"i·um noun ;
plural Latin
Oöphorida , English
Oöphoridiums . [ New Latin , dim. from Greek .... See
Oöphore .]
(Botany) The macrosporangium or case for the larger kind of spores in heterosporous flowerless plants.
Oöphoritis O`ö·pho·ri"tis noun [ New Latin , from Greek
w,'o`n egg +
fe`rein to bear +
- itis .]
(Medicine) Ovaritis.
Oöphyte O"ö·phyte noun [ Greek
w,'o`n an egg +
fyto`n a plant.]
(Botany) Any plant of a proposed class or grand division (collectively termed oöphytes or Oöphyta ), which have their sexual reproduction accomplished by motile antherozoids acting on oöspheres, either while included in their oögonia or after exclusion. » This class was at first called
Oösporeæ , and is made to include all algæ and fungi which have this kind of reproduction, however they may differ in all other respects, the contrasted classes of Thallophytes being
Protophytes ,
Zygophytes , and
Carpophytes . The whole system has its earnest advocates, but is rejected by many botanists. See
Carpophyte .
Oöphytic O`ö·phyt"ic adjective (Botany) Of or pertaining to an oöphyte.
Oörial O·ö"ri·al noun (Zoology) A wild, bearded sheep inhabiting the Ladakh mountains. It is reddish brown, with a dark beard from the chin to the chest.
Oösperm O"ö·sperm (omac/"o*spẽrm)
noun [ Greek ... an egg + English
sperm .]
(Biol.) The ovum, after fusion with the spermatozoön in impregnation. Balfour.
Oösphere O"ö·sphere (-sfēr)
noun [ Greek ... an egg + English
sphere .]
1. (Botany) An unfertilized, rounded mass of protoplasm, produced in an oögonium. » After being fertilized by the access of antherozoids it becomes covered with a cell wall and develops into an oöspore, which may grow into a new plant like the parent.
2. (Botany) An analogous mass of protoplasm in the ovule of a flowering plant; an embryonic vesicle. Goodale.
Oösporangium O`ö·spo·ran"gi·um noun ;
plural Latin
Oösporangia , English
Oösporangiums . [ New Latin , from Greek ... an egg + ... vessel.]
(Botany) An oögonium; also, a case containing oval or rounded spores of some other kind than oöspores.
Oöspore O"ö·spore noun [ Greek ... an egg + ... a seed.]
(Botany) (a) A special kind of spore resulting from the fertilization of an oösphere by antherozoids. (b) A fertilized oösphere in the ovule of a flowering plant.
Oösporic O`ö·spor"ic adjective (Botany) Of or pertaining to an oöspore.
Oöstegite O·ös"te·gite noun [ Greek ... + ... a roof.]
(Zoology) One of the plates which in some Crustacea inclose a cavity wherein the eggs are hatched.
Oötheca O`ö·the"ca noun ;
plural Oöthecæ . [ New Latin , from Greek ... an egg + ... a case.]
(Zoology) An egg case, especially those of many kinds of mollusks, and of some insects, as the cockroach. Confer Oœcium .
Oötooid, Oötocoid O·öt"·ooid, O·öt"o·coid noun [ Greek ... laying eggs (... egg + ... a bearing, ... to bear) +
-oid .]
(Zoology) A half oviparous, or an oviparous, mammal; a marsupial or monotreme.
Oötype O"ö·type noun [ Greek ... +
- type .]
(Zoology) The part of the oviduct of certain trematode worms in which the ova are completed and furnished with a shell.
Oözoa O`ö·zo"a noun plural [ New Latin , from Greek ... an egg +
zo^,on an animal.]
(Zoology) Same as Acrita .
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