hydroxyl

noun
hy·​drox·​yl | \hī-ˈdräk-səl \

Definition of hydroxyl 

1 : the chemical group, ion, or radical OH that consists of one atom of hydrogen and one of oxygen and is neutral or negatively charged

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Other Words from hydroxyl

hydroxylic \ˌhī-​ˌdräk-​ˈsi-​lik \ adjective

Examples of hydroxyl in a Sentence

Recent Examples on the Web

Under the microscope, ivory reveals its molecular structure: a three-dimensional collagen scaffolding filled with hydroxyl apatite minerals and water. Sasha Mushegian, Smithsonian, "Appalled by the Illegal Trade in Elephant Ivory, a Biologist Decided to Make His Own," 10 May 2017 The crashes gave off signatures associated with water ice and hydroxyl—a highly reactive molecule associated with water. National Geographic, "Water Found Deep Inside the Moon—Get the Facts," 24 July 2017 This water is no longer in its liquid state, but is bound to oxygen in crystal structures to form hydroxyl (OH-) Brian Romans, WIRED, "It's all about water," 13 Aug. 2007 Under the microscope, ivory reveals its molecular structure: a three-dimensional collagen scaffolding filled with hydroxyl apatite minerals and water. Sasha Mushegian, Smithsonian, "Appalled by the Illegal Trade in Elephant Ivory, a Biologist Decided to Make His Own," 11 May 2017 Typically cleansers with beta hydroxy acids, like salicylic, and alpha hydroxyl acids, like glycolic and lactic, are marketed to teens and those who suffer from acne (so perfect if your discoloration comes from pimples). Alexandra Engler, Marie Claire, "From Topical Treatments to Lasers, Your Complete Guide to Treating Hyperpigmentation," 7 Mar. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydroxyl.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hydroxyl

1869, in the meaning defined at sense 1

History and Etymology for hydroxyl

hydr- + ox- + -yl

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Statistics for hydroxyl

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Time Traveler for hydroxyl

The first known use of hydroxyl was in 1869

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More Definitions for hydroxyl

hydroxyl

noun
hy·​drox·​yl | \hī-ˈdräk-səl \

Medical Definition of hydroxyl 

1 : the chemical group or ion OH that consists of one atom of hydrogen and one of oxygen and is neutral or positively charged

Other Words from hydroxyl

hydroxylic \ˌhī-​ˌdräk-​ˈsil-​ik \ adjective

Comments on hydroxyl

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