• synonyms


[hoo k-wurm]
  1. any of certain bloodsucking nematode worms, as Ancylostoma duodenale and Necator americanus, parasitic in the intestine of humans and other animals.
  2. Also called hookworm disease. a disease caused by hookworms, which may enter the body by ingestion or through the skin of the feet or legs, causing abdominal pain, nausea, and, if untreated, severe anemia.
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Origin of hookworm

First recorded in 1900–05; hook1 + worm
Related formshook·worm·y, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hookworm

Historical Examples

  • The hookworm, deadly as an asp, has got you in its loathsome grasp!

    Uncle Walt [Walt Mason]

    Walt Mason

  • But I will break the hookworm lose, and cook its everlasting goose!

  • And physical "hookworm" is accompanied by a similar mental condition.

    Prowling about Panama

    George A. Miller

  • This does literally beat the devil; for, if the hookworm isn't the devil, what is?

  • The hookworm disease, ankylostomiasis, has steadily decreased.

British Dictionary definitions for hookworm


  1. any parasitic blood-sucking nematode worm of the family Ancylostomatidae, esp Ancylostoma duodenale or Necator americanus, both of which cause disease. They have hooked mouthparts and enter their hosts by boring through the skin
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

hookworm in Medicine


  1. Any of numerous small parasitic nematodes of the family Ancylostomatidae having hooked mouthparts with which they fasten themselves to the intestinal walls of various hosts, including humans.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

hookworm in Science


  1. Any of numerous small, parasitic nematode worms of the family Ancylostomatidae, having hooked mouthparts with which they fasten themselves to the intestinal walls of various animals, including humans.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.