hydroxyl

or hy·drox·y

[ hahy-drok-suhl ]

adjective

1. containing the hydroxyl group.

hydroxyl

/ haɪˈdrɒksɪl /

noun

1. modifier of, consisting of, or containing the monovalent group -OH or the ion OH ^–

   a hydroxyl group or radical

hydroxyl

/ hī-drŏk′sĭl /

1. The group OH. Hydroxyl is present in bases, certain acids, hydroxides, and alcohols.

Derived Forms

• ˌhydroxˈylic, adjective

Other Words From

• hy·drox·yl·ic [hahy-drok-, sil, -ik], adjective

Word History and Origins

Origin of hydroxyl¹

First recorded in 1865–70; hydr- ² + ox(y)- ² + -yl

Example Sentences

That hydroxyl-containing part of RNA is not an entire RNA monomer.

From Science News For Students

Rheinberger and his team copied this hydroxyl-containing part of RNA and used it to link some of PLA’s monomers.

From Science News For Students

This pair is called a hydroxyl group and has a tiny negative charge.

From Science News For Students

Specifically, small compounds called hydroxyl groups, which consist of hydrogen and oxygen atoms, do most of the work.

From Popular-Science

The assumption was that it was in the form of hydroxyl, which is made of one oxygen atom and one hydrogen atom—a stable molecule that would naturally form in a regolith where oxygen is also present.

From Time

Another toxic component of the fuel was hydroxyl-terminated polybutadiene, a form of rubber.

From The Daily Beast

Those four atoms are called the methyl group, and a methyl group combined with a hydroxyl group forms methyl alcohol.

From Project Gutenberg

First, the hydrogen is displaced by the chlorine: then the chlorine is turned out and its place taken by the hydroxyl.

From Project Gutenberg

It is best detected in acid solutions by the deep brown or iodine colour developed on adding hydroxyl.

From Project Gutenberg

Now these phenols are all more or less acid in character by virtue of the hydroxyl-group which they contain.

From Project Gutenberg

The substitution of a hydrogen atom by the hydroxyl group generally occasions a rise in boiling-point at about 100.

From Project Gutenberg