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ox·y·gen

oxygen

 
pronunciation:
ak s jn
features:
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part of speech: noun
definition: a gas with no color or smell that is one of the chemical elements. Oxygen combines with hydrogen to make water. It also makes up about twenty percent of the earth's atmosphere. Most living things need oxygen. (symbol: O)
The oxygen we breathe is delivered to various organs by the blood.
derivations: oxygenic (adj.), oxygenous (adj.), oxygenicity (n.)
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  air, blood, breathe, cell, ecosystem, element, health, leaf, life, life cycle, respiration, tree, water
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The word oxygen contains the following part:
gen, gener Latin and Greek root that means birth, origin, race, kind