Oxygen
['ɒksɪdʒ(ə)n] or ['ɑksɪdʒən]
Definition
(noun.) 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.
Checked by Godiva--From WordNet
Definition
(n.) A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96.
(n.) Chlorine used in bleaching.
Typist: Sanford
Definition
n. a gas without taste colour or smell forming part of the air water &c. and supporting life and combustion.—n. Oxychlō′ride a chemical compound containing both chlorine and oxygen in combination with some other element.—v.t. Ox′ygenāte to unite or cause to unite with oxygen.—n. Oxygenā′tion act of oxygenating.—v.t. Ox′ygenise (same as Oxygenate).—adj. Oxyg′enous pertaining to or obtained from oxygen.—adj. Oxyhy′drogen pertaining to a mixture of oxygen and hydrogen as in a form of blowpipe in which jets of either ignite as they issue from separate reservoirs.
Typed by Damian
Examples
- Gay-Lussac found that two volumes of h ydrogen combined with one volume of oxygen to produce two volumes of water vapor. Walter Libby. An Introduction to the History of Science.
- A siren worked by explosion of small quantities of oxygen and hydrogen mixed. Frank Lewis Dyer. Edison, His Life and Inventions.
- If the atmosphere were composed of oxygen alone, the merest flicker of a match would set the whole world ablaze. Bertha M. Clark. General Science.
- Inasmuch as the nitrogen of liquid air evaporates first, and leaves nearly pure liquid oxygen, it may also be employed as a means for producing and applying oxygen. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- In the words of Dalton, oxygen may combine with a certain portion of nitrous gas [as he called nitric oxide], or with twice that po rtion, but with no intermediate portion. Walter Libby. An Introduction to the History of Science.
- We talk of breathing air, but what all living things really do is to breathe oxygen dissolved in water. H. G. Wells. The Outline of History_Being a Plain History of Life and Mankind.
- The best known constituent of the air is oxygen, already familiar to us as the feeder of the fire without and within the body. Bertha M. Clark. General Science.
- He called the first oxygen. Walter Libby. An Introduction to the History of Science.
- The fact that the oxygen of the air is diluted as it were with so large a proportion of nitrogen, prevents fires from sweeping over the world and destroying everything in their path. Bertha M. Clark. General Science.
- Plants thus serve to keep the atmosphere free from an excess of carbon dioxide and, in addition, furnish oxygen to the atmosphere. Bertha M. Clark. General Science.
- According t o Avogadro the water vapor contains twice as many atoms of hydrogen as of oxygen. Walter Libby. An Introduction to the History of Science.
- In experiment 14 an electric light carbon heated to a red heat at its tip, is plunged vertically into a deep glass of liquid oxygen. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Two atoms of the element hydrogen unite with one atom of the element oxygen to make one molecule of water. Bertha M. Clark. General Science.
- But nowhere, except in the air around us, do we find oxygen free and uncombined with other substances. Bertha M. Clark. General Science.
- He drew diagrams combining an a tom of oxygen with an atom of nitrogen and an atom of aqueous vapor. Walter Libby. An Introduction to the History of Science.
Typed by Dominic