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

fear of the number 13

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

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!