Organic Chemistry

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hydroxyl group

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

hydroxyl group , in chemistry, functional group that consists of an oxygen atom joined by a single bond to a hydrogen atom. An alcohol is formed when a hydroxyl group is joined by a single bond to an alkyl group or aryl group . A metal hydroxide is formed when a hydroxyl group is joined to a metal (e.g., sodium hydroxide).

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hydroxyl

A Dictionary of Astronomy | 1997 | Copyright

hydroxyl (symbol OH) A molecule composed of an oxygen atom and a hydrogen atom; also called the hydroxyl radical. Hydroxyl is one of the commonest interstellar molecules. It was the first interstellar molecule discovered by radio astronomers, in 1963. See also oh line; oh maser.

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hydroxyl

The Oxford Pocket Dictionary of Current English | 2009 | Copyright

hy·drox·yl / hīˈdräksəl/ • n. [as adj.] Chem. of or denoting the radical −OH, present in alcohols and many other organic compounds: a hydroxyl group.

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hydroxyl

A Dictionary of Biology | 2004 | Copyright

hydroxyl Denoting the group –OH in a chemical compound or the ion OH^–.

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