casein

noun ca·sein \ ˈkā-ˌsēn , kā-ˈ \

Definition of casein

: a phosphoprotein of milk: such as
a : one that is precipitated from milk by heating with an acid or by the action of lactic acid in souring and is used in making paints and adhesives
b : one that is produced when milk is curdled by rennet, is the chief constituent of cheese, and is used in making plastics

Recent Examples of casein from the Web

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

Origin and Etymology of casein

probably from French caséine, from Latin caseus cheese


CASEIN Defined for Kids

casein

noun ca·sein \ kā-ˈsēn \

Definition of casein for Students

: a whitish to yellowish protein that is found in milk and cheese and is used in making paints, plastics, and adhesives

Medical Dictionary

casein

noun ca·sein \ ˈkā-ˌsēn, ka-ˈsēn \

medical Definition of casein

: any of several phosphoproteins of milk: as
a : one that occurs as a colloidal suspension in milk called also caseinogen
b : one that is produced when milk is curdled by rennet, is the chief constituent of cheese, and is used in making plastics called also paracasein

Learn More about casein


Seen and Heard

What made you want to look up casein? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

a man who seduces many women

Get Word of the Day daily email!

Test Your Vocabulary

Star Wars Words Quiz

  • cu-jedi-training
  • The bounty portion of bounty hunters (such as Boba Fett) comes from a Latin word meaning
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!