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albumin

American  
[al-byoo-muhn] / ælˈbyu mən /
Or albumen

noun

Biochemistry.
  1. any of a class of simple, sulfur-containing, water-soluble proteins that coagulate when heated, occurring in egg white, milk, blood, and other animal and vegetable tissues and secretions.


albumin British  
/ ˈælbjʊmɪn /

noun

  1. any of a group of simple water-soluble proteins that are coagulated by heat and are found in blood plasma, egg white, etc

"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

albumin Scientific  
/ ăl-byo̅o̅mĭn /
  1. A class of proteins found in egg white, milk, blood, and various other plant and animal tissues. Albumins dissolve in water and form solid or semisolid masses when heated, such as cooked egg white.


Etymology

Origin of albumin

album(en) + -in 2

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.

Analyst David Stanton says investors’ near-term focus is on CSL’s performance in immunoglobulin in the U.S. and in albumin in China.

From The Wall Street Journal • Apr. 13, 2026

Low albumin levels -- known as hypoalbuminemia -- emerged as the strongest predictor of severe outcomes, including death, across diverse patient groups on multiple continents.

From Science Daily • Mar. 3, 2026

When the protein albumin was measured in the urine, the average level for participants was 714 mg/gm of creatinine; levels of 30 or higher may be a sign of chronic kidney disease.

From Science Daily • Oct. 8, 2025

Bentonite clay, gelatin, egg albumin from egg whites, purified milk proteins called casein and isinglass made from the bladders of sturgeons, are all used to filter the wine through a process called “fining.”

From National Geographic • Jul. 20, 2023

Some contained albumin, some had no albumin content.

From Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. by Warfield, Louis Marshall