Definition of "pinworm" []

• Any of various small nematode worms of the family Oxyuridae that are parasitic on horses, rabbits, and other mammals, especially Enterobius vermicularis, a species that infests the human intestines and rectum. Also called threadworm. (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.

• "The most prolific parasitic worm in the U.S. and European Union: the pinworm, which is most common during childhood."
• "With many viruses, pinworm eggs likely in the goose poop on the playground and C. difficile bacteria resistant to alcohol it makes sense to wash down the drain than to douse in alcohol. stanlee"
• "In the pinworm soup there were squirming iridescent protozoa, single-celled giants that were almost as big as the multicellular worms."