Definition of "booklouse" []

• Any of various small, often wingless insects of the order Psocoptera (or Corrodentia), some species of which feed on stored flour products, paper, or bookbindings. (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.

• "(Apr. 8, 2008) - The discovery of a new genus of a tiny booklouse from a northern Arizona cave may lead to further protection for cave ecosystems."