true oxygen

Mira otros diccionarios:

• oxygen — noun Usage: often attributive Etymology: French oxygène, from Greek oxys, adjective, acidic, literally, sharp + French gène gen; akin to Latin acer sharp more at edge Date: 1788 1. a reactive element that is found in water, in most rocks and… …   New Collegiate Dictionary

• Oxygen XML Editor — <oXygen/> XML Editor Stable release 13.1 / October 26, 2011; 26 days ago (2011 10 26) Written in Java …   Wikipedia

• Oxygen (novel) — Oxygen   …   Wikipedia

• Oxygen radical absorbance capacity — (ORAC) is a method of measuring antioxidant capacities in biological samples in vitro.[1][2] A wide variety of foods has been tested using this method, with certain spices, berries and legumes rated highly.[3] There exists no physiological proof… …   Wikipedia

• Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …   Wikipedia

• Chemical oxygen demand — In environmental chemistry, the chemical oxygen demand (COD) test is commonly used to indirectly measure the amount of organic compounds in water. Most applications of COD determine the amount of organic pollutants found in surface water (e.g.… …   Wikipedia

• Leiden scale — The Leiden scale was used to calibrate low temperature indirect measurements in the early twentieth century, by providing conventional values (in kelvins, then termed degrees Kelvin ) of helium vapour pressure. It was used below 183°C, the… …   Wikipedia

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …   Universalium

• chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium