Are you a native English speaker? How do you pronounce this word?
n. - Any substance (as a toxin or enzyme) that stimulates an immune response in the body.
Tutoring comment not yet available...
LearnThatWord and the Open Dictionary of English are programs by LearnThat Foundation, a 501(c)3 nonprofit.
Questions? Feedback? We want to hear from you!
or click here for instant support.
Copyright © 2005 and after - LearnThat Foundation. Patents pending.