J chain

noun
\ ˈjā-ˌchān How to pronounce J chain (audio) \

Medical Definition of J chain

: a relatively short polypeptide chain with a molecular weight of about 35,000 daltons and a high number of cysteine residues that is found in antibodies of the IgM and IgA classes

Comments on J chain

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

WORD OF THE DAY

a secret plot to overthrow a government

Get Word of the Day daily email!

Test Your Vocabulary

April 2019 Words of the Day Quiz

  • a bird amidst buds
  • Which is a synonym of propitious?
True or False

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

TAKE THE QUIZ
SCRABBLE® Sprint

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!