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leukocidin

[ lōō′kə-sīdn, lōō-kōsĭ-dn ]
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n.
A substance, produced by certain species of Staphylococcus and Streptococcus bacteria, that can destroy or lyse white blood cells.
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 American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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