Oxymuriatic adjective [ Oxy- (a) + muriatic : confer French oxymuriatique .] (Chemistry) Pertaining to, or consisting of, oxygen and muriatic acid, that is, hydrochloric acid. [ Archaic.]

Oxymuriatic acid , chlorine, formerly so called on the supposition that it was a compound of oxygen and muriatic acid. [ Obsolete]

Oxyneurine noun (Chemistry) See Betaine .

Oxyntic adjective [ Greek ............ to make acid.] (Physiol.) Acid; producing acid; -applied especially to certain glands and cells in the stomach.

Oxyopia, Oxyopy noun [ New Latin oxyopia , from Greek ......... sharp + ......... sight.] (Medicine) Excessive acuteness of sight.

Oxyphenic adjective [ Oxy- (b) + phenol .] (Chemistry) Pertaining to, or designating, the phenol formerly called oxyphenic acid , and now oxyphenol and pyrocatechin . See Pyrocatechin .

Oxyphenol noun (Chemistry) A phenol, ..............., produced by the distillation of catechin; called also oxyphenic acid , and now pyrocatechin .

Oxyphony noun [ Greek ......... sharp + ............ voice.] Acuteness or shrillness of voice.

Oxyquinoline noun [ Oxy- (b) + quinoline .] (Chemistry) Hydroxy quinoline; a phenol derivative of quinoline, -- called also carbostyril .

Oxyrhyncha noun plural [ New Latin , from Greek ............ sharp + .................. snout.] (Zoology) The maioid crabs.

Oxyrrhodine noun [ Greek ......... (sc. .........); 'oxy`s acid + ............ made of roses, ............ rose.] (Medicine) A mixture of two parts of the oil of roses with one of the vinegar of roses. Floyer.

Oxysalt noun [ Oxy- (a) + salt .] (Chemistry) A salt of an oxyacid, as a sulphate.

Oxysulphide noun (Chemistry) A ternary compound of oxygen and sulphur.

Oxysulphuret noun (Chemistry) An oxysulphide. [ Obsolescent]

Oxytocic adjective [ Greek ............ sharp, quick + ............ birth.] (Medicine) Promoting uterine contractions, or parturition. -- noun An oxytocic medicine or agent.

Oxytoluene noun [ Oxy- (a) + toluene .] One of three hydroxy derivatives of toluene, called the cresols . See Cresol .

Oxytone adjective [ Greek .........; ......... sharp + ......... tone.] Having an acute sound; (Gr. Gram.) , having an acute accent on the last syllable.

Oxytone noun
1. An acute sound.

2. (Gr. Gram.) A word having the acute accent on the last syllable.

Oxytonical adjective (Gr. Gram.) Oxytone.

Oyer noun [ Anglo F., a hearing, from Old French oïr , French ouïr , to hear, Latin audire . See Audible .] (Law) A hearing or an inspection, as of a deed, bond, etc., as when a defendant in court prays oyer of a writing. Blackstone.

Oyer and terminer (Law) , a term used in England in commissions directed to judges of assize about to hold court, directing them to hear and determine cases brought before them. In the U.S. the phrase is used to designate certain criminal courts.

Oyez (ōyĕs; 277) interj. [ Anglo-F. oyez hear ye. See Oyer .] Hear; attend; -- a term used by criers of courts to secure silence before making a proclamation. It is repeated three times. [ Written also oyes .]

Oylet noun [ See Eyelet .]
1. See Eyelet .

2. (Architecture) Same as Oillet .

Oynoun noun Onion. [ Obsolete] Chaucer.

Oyster noun [ Old French oistre , French huître , Latin ostrea , ostreum , Greek 'o`streon ; probably akin to 'ostre`on bone, the oyster being so named from its shell. Confer Osseous , Ostracize .]
1. (Zoology) Any marine bivalve mollusk of the genus Ostrea. They are usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or in brackish water in the mouth of rivers. The common European oyster ( Ostrea edulis ), and the American oyster ( Ostrea Virginiana ), are the most important species.

2. A name popularly given to the delicate morsel contained in a small cavity of the bone on each side of the lower part of the back of a fowl.

Fresh-water oyster (Zoology) , any species of the genus Etheria , and allied genera, found in rivers of Africa and South America. They are irregular in form, and attach themselves to rocks like oysters, but they have a pearly interior, and are allied to the fresh-water mussels. -- Oyster bed , a breeding place for oysters; a place in a tidal river or other water on or near the seashore, where oysters are deposited to grow and fatten for market. See 1st Scalp , noun -- Oyster catcher (Zoology) , any one of several species of wading birds of the genus Hæmatopus , which frequent seashores and feed upon shellfish. The European species ( H. ostralegus ), the common American species ( H. palliatus ), and the California, or black, oyster catcher ( H. Bachmani ) are the best known. -- Oyster crab (Zoology) a small crab ( Pinnotheres ostreum ) which lives as a commensal in the gill cavity of the oyster. -- Oyster dredge , a rake or small dragnet of bringing up oyster from the bottom of the sea. -- Oyster fish . ( Zoöl .) (a) The tautog. (b) The toadfish. -- Oyster plant . (Botany) (a) A plant of the genus Tragopogon ( T. porrifolius ), the root of which, when cooked, somewhat resembles the oyster in taste; salsify; -- called also vegetable oyster . (b) A plant found on the seacoast of Northern Europe, America and Asia ( Mertensia maritima ), the fresh leaves of which have a strong flavor of oysters. -- Oyster plover . (Zoology) Same as Oyster catcher , above. -- Oyster shell (Zoology) , the shell of an oyster. -- Oyster wench , Oyster wife , Oyster women , a women who deals in oysters. -- Pearl oyster . (Zoology) See under Pearl . -- Thorny oyster (Zoology) , any spiny marine shell of the genus Spondylus .

Oyster-green noun (Botany) A green membranous seaweed ( Ulva ) often found growing on oysters but common on stones, piles, etc.

Oystering noun Gathering, or dredging for, oysters.

Oysterling noun (Zoology) A young oyster.

Ozena noun [ New Latin , from Latin ozaena , Greek 'o`zaina , from 'o`zein to smell.] (Medicine) A discharge of fetid matter from the nostril, particularly if associated with ulceration of the soft parts and disease of the bones of the nose.

Ozocerite noun [ Greek 'o`zein to smell + ... wax.] (Min.) A waxlike mineral resin; -- sometimes called native paraffin , and mineral wax .

Ozonation noun (Chemistry) The act of treating with ozone; also, the act of converting into, or producing, ozone; ozonization.

Ozone 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 (Chemistry) Paper coated with starch and potassium iodine. It turns blue when exposed to ozone. >-- also called starch-iodide paper -->

Ozonic adjective (Chemistry) Pertaining to, resembling, or containing, ozone.

Ozonification noun [ Ozone + Latin -ficare to make. See fy . ] (Chemistry) The act or process of producing, or of subjecting to the action of, ozone.

Ozonization noun (Chemistry) Ozonation.

Ozonize 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 noun (Chemistry) An apparatus or agent for the production or application of ozone.

Ozonometer noun [ Ozone + -meter .] An instrument for ascertaining the amount of ozone in the atmosphere, or in any gaseous mixture. Faraday.

Ozonometric adjective (Chemistry) Pertaining to, or used for, the determination of the amount of ozone; of or relating to ozonometry.

Ozonometry noun (Chemistry) The measurement or determination of the quantity of ozone.

Ozonoscope noun [ Ozone + -scope .] (Chemistry) An apparatus employed to indicate the presence, or the amount, of ozone.

Ozonoscopic adjective [ Ozone + Greek ... to view.] (Chemistry) Serving to indicate the presence or the amount of ozone.

Ozonous adjective Pertaining to or containing, ozone.