Definition of "microvillus" []

• Any of the minute hairlike structures projecting from the surface of certain types of epithelial cells, especially those of the small intestine. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Yesterday, an inquest into her death heard that she had been born with a life-threatening illness called microvillus inclusion disease, which affects only one person in 1,000."