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carbonic anhydrase

American  
[an-hahy-drays, -drayz] / ænˈhaɪ dreɪs, -dreɪz /

noun

Biochemistry.
  1. an enzyme that catalyzes the reversible combination of carbon dioxide with water in red blood cells.


carbonic anhydrase British  

noun

  1. an enzyme in blood cells that catalyses the decomposition of carbonic acid into carbon dioxide and water, facilitating the transport of carbon dioxide from the tissues to the lungs

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of carbonic anhydrase

First recorded in 1835–45; anhydr- + -ase

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

By embedding a helper enzyme, carbonic anhydrase, into a porous titania structure, the researchers enabled the system to work in a simple bicarbonate solution — similar to sparkling water — without unsustainable additives.

From Science Daily ● Nov. 2, 2025

Carbon dioxide is converted into bicarbonate in the cytoplasm of red blood cells through the action of an enzyme called carbonic anhydrase.

From Textbooks ● Jun. 19, 2013

Hydrogen ions and bicarbonate ions join to form carbonic acid, which is converted into carbon dioxide and water by carbonic anhydrase.

From Textbooks ● Jun. 19, 2013

Bicarbonate is created by a chemical reaction that occurs mostly in erythrocytes, joining carbon dioxide and water by carbonic anhydrase, producing carbonic acid, which breaks down into bicarbonate and hydrogen ions.

From Textbooks ● Jun. 19, 2013

The gas diffuses into the renal cells where carbonic anhydrase catalyzes its conversion back into a bicarbonate ion, which enters the blood.

From Textbooks ● Jun. 19, 2013

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