immunoglobulin A


n.

The class of antibodies produced predominantly against ingested antigens, found in body secretions such as saliva, sweat, and tears, and functioning to prevent attachment of viruses and bacteria to epithelial surfaces.

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.