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rennin

American  
[ren-in] / ˈrɛn ɪn /

noun

Biochemistry.
  1. a coagulating enzyme occurring in the gastric juice of the calf, forming the active principle of rennet and able to curdle milk.


rennin British  
/ ˈrɛnɪn /

noun

  1. Also called: chymosin.  an enzyme that occurs in gastric juice and is a constituent of rennet. It coagulates milk by converting caseinogen to casein

"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

rennin Scientific  
/ rĕnĭn /
  1. An enzyme that catalyzes the coagulation of milk. Rennin is found in the gastric juice of the fourth stomach of young ruminants and is used in making cheese.

  2. Also called chymosin


Etymology

Origin of rennin

First recorded in 1895–1900; renn(et) + -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.

During infancy, gastric glands also produce rennin, an enzyme that helps digest milk protein.

From Textbooks • Jun. 19, 2013

Rennet extract contains an enzyme, rennin, that causes the milk to curdle; also another enzyme, pepsin, that exerts a digestive action on the curdled casein.

From Outlines of dairy bacteriology A concise manual for the use of students in dairying by Hastings, Edwin George

Its chief constituents are two ferments called pepsin and rennin, free hydrochloric acid, mineral salts, and 95 per cent of water.

From A Practical Physiology by Blaisdell, Albert F.

The latter are dissolved in the water and include, besides several salts, three active chemical agents—hydrochloric acid, pepsin, and rennin.

From Physiology and Hygiene for Secondary Schools by Walters, Francis M.

An enzyme called rennin exists in the gastric juice of the human stomach also.

From School and Home Cooking by Greer, Carlotta Cherryholmes