Oxygen

Word OXYGEN
Character 6
Hyphenation ox y gen
Pronunciations /ˈɒksɪdʒən/

Definitions and meanings of "Oxygen"

What do we mean by oxygen?

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. cross-reference: Periodic Table. noun

Chemical symbol, O; atomic weight, 16. An element discovered by Priestley in 1774, who called it dephlogisticated air. noun

A manufacturers' name for bleaching-powder. noun

A colorless, tasteless, odorless, gaseous element of atomic number 8, 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 15.9994. noun

Chlorine used in bleaching. noun

A chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. noun

Molecular oxygen (O2), a colorless, odorless gas at room temperature. noun

A mixture of oxygen and other gases, administered to a patient to help him or her to breathe. noun

An atom of this element. 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 noun

The chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. It is a colorless and odorless gas.

Molecular oxygen (O2), a colorless, odorless gas at room temperature, also called dioxygen.

A mixture of oxygen and other gases, administered to a patient to help them breathe.

An atom of this element.

Synonyms and Antonyms for Oxygen

The word "oxygen" in example sentences

He thought that experiments proved all acids to be compounds of the element oxygen; and for many years after Lavoisier, the alchemical expression _the principle of acidity_ was superseded by the word _oxygen_. ❋ M. M. Pattison Muir (N/A)

So, too, they claim that there are two distinct processes carried on by the leaves of plants, -- namely, respiration and digestion: that the first is analogous to the same process in animals; and that by it oxygen is absorbed from, and carbonic acid returned to the atmosphere, though to a limited degree: and that digestion consists in _the decomposition of carbonic acid by the green tissues of the leaves under the stimulus of the light, the fixation of solid carbon, and the evolution of pure oxygen_. ❋ Various (N/A)

a compound containing hydrogen and oxygen in the proportion of 1 part by weight of hydrogen to 7.94 parts by weight of oxygen_. ❋ William McPherson (N/A)

This oxygen comes from the orbiter main oxygen supply while the suit is connected and from a "bail out bottle" after the crewman leaves the seat. ❋ Unknown (2008)

By the time the rescuers get to the main collapse area, their oxygen is almost at it limits. ❋ Unknown (2010)

I do like steampunk - which is what I call my oxygen concentrator, "Turn on the Steampunk!" ❋ Elizabeth McClung (2008)

He does not know anything about what we call oxygen; but it is astonishing how very easy it would be to turn his language into the equivalent of modern chemical theory. ❋ Unknown (2007)

Plants can form what he calls oxygen (O) roots and water/nutrient (W/N) roots. ❋ Unknown (1996)

While the baby remains attached to the placenta, he or she can receive oxygen and nutrients from mom while the surgeon works to establish an airway that will permit the child to breathe and obtain oxygen independently. ❋ Unknown (2010)

As all high school chemistry students know, oxygen is not flammable. ❋ Unknown (2010)

In the RECENT past, up to 30% of the world's oxygen comes from the rain forests, generally in South America. ❋ Unknown (2009)

Providing a roof that can produce oxygen is an excellent way to ensure that our planet stays healthy and green for generations to come. ❋ Unknown (2009)

The oxygen is fed through a connector at the left thigh, entering the helmet at the base of the neck ring. ❋ Unknown (2010)

The award to Wieland was primarily for his investigations of bile acids, whereas Windaus was recognized mainly for his work on cholesterol and his demonstration of the steroid nature of vitamin D. Wieland had already in 1912, before his prize-winning work, formulated a theory for biological oxidation, according to which removal of hydrogen (dehydrogenation) rather than reaction with oxygen is the dominating process. ❋ Unknown (2010)

One part oxygen is drawn together with two parts hydrogen to create water. ❋ Bill Shireman (2010)

Most of the earth's oxygen is produced in the sea by single-celled organisms. ❋ Unknown (2010)

Potassium nitrate (KNO3) supplies oxygen for the reaction, so no atmospheric oxygen is needed. ❋ Unknown (2009)

Cross Reference for Oxygen

What does oxygen mean?

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