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antigens

[ (an-ti-juhnz) ]
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Substances that are foreign to the body and cause the production of antibodies. Toxins, invading bacteria and viruses, and the cells of transplanted organs can all function as antigens.

QUIZ
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Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

How to use antigens in a sentence

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