anhydride

American  

[an-hahy-drahyd, -drid] / ænˈhaɪ draɪd, -drɪd /

noun

Chemistry.

1. a compound formed by removing water from a more complex compound: an oxide of a nonmetal acid anhydride or a metal basic anhydride that forms an acid or a base, respectively, when united with water.

2. a compound from which water has been abstracted.

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anhydride British  

/ ænˈhaɪdraɪd, -drɪd /

noun

1. a compound that has been formed from another compound by dehydration

2. a compound that forms an acid or base when added to water

3. Also called: acid anhydride.   acyl anhydride.  any organic compound containing the group -CO.O.CO- formed by removal of one water molecule from two carboxyl groups

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anhydride Scientific  

/ ăn-hī′drīd′ /

1. A chemical compound formed from another, especially an acid, by the removal of water.

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Etymology

Origin of anhydride

1860–65; anhydr(ous) + -ide ( def. )

Example Sentences

See Examples For:

anhydride

These previously uncharacterized acid sulfuric anhydride products are almost certainly key contributors to atmospheric new particle formation and a way to efficiently incorporate carboxylic acids into atmospheric nanoparticles.

From Science Daily ● May 23, 2024

Gradually, water vapour from the air hydrolysed the polymer’s anhydride groups, causing decomposition of the film.

From Scientific American ● Sep. 8, 2017

The decomposition time could be varied from days to weeks and potentially even longer by altering the polymer’s anhydride content and the humidity.

From Scientific American ● Sep. 8, 2017

It is heated to start the reaction, and when it is complete the resins, residual acetic anhydride and acetic acid are wicked away from the wood, and the pine has become Accoya.

From BBC ● May 6, 2011

This compound, soluble in acetic anhydride, was boiled with it for six hours after adding fused sodium acetate, and the product separated by pouring into water.

From Researches on Cellulose 1895-1900 by Cross, C. F.