oxygen(redirected from Oxygen compounds)
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n. Symbol O
A nonmetallic element constituting 21 percent of the atmosphere by volume that occurs as a diatomic gas, O2, and in many compounds such as water and silica, and in iron ore. It combines with most elements, is essential for plant and animal respiration, and is required for nearly all combustion. Ozone, O3, is an allotrope of this element. Atomic number 8; atomic weight 15.9994; melting point -218.79°C; boiling point -182.9°C; gas density at 0°C 1.429 grams per liter; valence 2. See Periodic Table.
ox′y·gen′ic (-jĕn′ĭk) adj.
ox·yg′e·nous (ŏk-sĭj′ə-nəs) adj.
Word History: One of the most important substances on earth is misnamed. The word oxygen is the Anglicized form of French oxygène, the name for the element proposed in a work entitled Méthode de nomenclature chimique (1787) by a collaborative of chemists including Antoine Laurent Lavoisier, Louis Bernard de Guyton de Morveau, Claude Louis Berthollet, and Antoine François de Fourcroy. (Oxygen had been discovered a few years before by Joseph Priestley in 1774, and he had called the gas dephlogisticated air.) The same publication also introduced the French words that were soon adopted into English as hydrogen and sodium chloride (common salt), among other terms commonly used in chemistry. The French word oxygène was intended to mean "acid-producing," from the Greek word oxus, "sharp," used in the sense "acid," and the Greek suffix -genes, "born," misinterpreted as "producing." At the time oxygen was thought to be an essential component of an acid. Although this is not the case, the name oxygen has persisted for the element.
(Elements & Compounds)
a. a colourless odourless highly reactive gaseous element: the most abundant element in the earth's crust (49.2 per cent). It is essential for aerobic respiration and almost all combustion and is widely used in industry. Symbol: O; atomic no: 8; atomic wt: 15.9994; valency: 2; density: 1.429 kg/m3; melting pt: –218.79°C; boiling pt: –182.97°C
b. (as modifier): an oxygen mask.
oxygenic, oxygenous adj
ox•y•gen(ˈɒk sɪ dʒən)
a colorless, odorless, gaseous element constituting about one-fifth of the volume of the atmosphere and present in a combined state in nature. Symbol: O; at. wt.: 15.9994; at. no.: 8; density: 1.4290 g/l at 0°C and 760 mm pressure.
[1780–90; < French oxygène (1786), short for principe oxygène acidifying principle; see oxy-1, -gen]
ox`y•gen′ic (-ˈdʒɛn ɪk) ox•yg′e•nous (-ˈsɪdʒ ə nəs) adj.
Symbol O A nonmetallic element that exists in its free form as a colorless, odorless gas and makes up about 21 percent of the Earth's atmosphere. It is the most abundant element in the Earth's crust and occurs in many compounds, including water, carbon dioxide, and iron ore. Oxygen combines with most elements, is required for combustion, and is essential for life in most organisms. Atomic number 8. See Periodic Table.
Word History In 1786, the French chemist Antoine Lavoisier coined a term for the element oxygen (oxygène in French). He used Greek words for the coinage: oxy- means "sharp," and -gen means "producing." Oxygen was called the "sharp-producing" element because it was thought to be essential for making acids. Lavoisier also coined the name of the element hydrogen, the "water-producing" element, in 1788. Soon after, in 1791, another French chemist, J. A. Chaptal, introduced the word nitrogen, the "niter-producing" element, referring to its discovery from an analysis of nitric acid.
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|Noun||1.||oxygen - a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust|
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
liquid oxygen, LOX - a bluish translucent magnetic liquid obtained by compressing gaseous oxygen and then cooling it below its boiling point; used as an oxidizer in rocket propellants
air - a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; "air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need some fresh air"
H2O, water - binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
ozone - a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)
oksigenzat asamzat pembakar
oxygen[ˈɒksɪdʒ/ən] n → ossigeno
an element, a gas without taste, colour or smell, forming part of the air. He died from lack of oxygen. suurstof أوكسجين кислород oxigênio kyslík der Sauerstoff ilt; oxygen οξυγόνοoxígeno hapnik اکسیژن happi oxygèneחמצן आक्सीजन kisik oxigén oksigen súrefni ossigeno 酸素 산소 deguonis skābeklis oksigen zuurstofsurstoff, oksygentlen اوكسيجن oxigénio oxigen кислород kyslík kisik kiseonik syre ก๊าซออกซิเจน oksijen 氧 кисень آکسيجن، ايک قسم کي گيس khí oxy 氧oxygen mask
a mask through which a person can breathe oxygen. suurstofmasker قِناع تَنَفُّس الأوكسجين кислородна маска máscara de oxigênio kyslíková maska die Sauerstoffmaske iltmaske μάσκα οξυγόνου mascarilla de oxígeno hapnikumask ماسک اکسیژن happinaamari masque à oxygène מסכת חמצן आक्सीजन आवरण maska s kisikom oxigénmaszk masker oksigen súrefnisgríma maschera ad ossigeno 酸素マスク 산소 마스크 deguonies kaukė skābekļa maska topeng oksigen zuurstofmasker oksygenmaske maska tlenowa اكسيجنى ماسك máscara de oxigénio mască de oxigen кислородная маска kyslíková maska kisikova maska maska sa kiseonikom syrgasmask หน้ากากครอบปากและจมูกสำหรับให้อ็อกซิเจน oksijen maskesi 氧氣面具 киснева маска آکسيجن لينے کا آلہ mặt nạ oxy 氧气面罩
oxygen→ أُكْسِجيـن kyslík ilt Sauerstoff οξυγόνο oxígeno happi oxygène kisik ossigeno 酸素 산소 zuurstof oksygen tlen oxigénio, oxigênio кислород syre ออกซิเจน oksijen khí Ôxy 氧气
n. oxígeno, elemento o gas incoloro e inodoro no metálico que circula libremente en la atmósfera;
___ deficiency → falta de ___;
___ distribution → distribución de ___;
___ treatment → tratamiento de ___;
___ tank → tanque portátil de ___.