A type of parasitic worm that hatches in the intestines and lives there. The eggs of the roundworm usually enter the body through contaminated water or food or on fingers placed in the mouth after the hands have touched a contaminated object. Symptoms from roundworm infections include fatigue, weight loss, irritability, poor appetite, abdominal pain and diarrhea. Treatment with medication results in a cure in about a week. Without treatment, anemia and malnutrition can develop. Example of a roundworm: Trichuris trichiura, also called the human whipworm. This worm is found worldwide, with infections more frequent in areas with tropical weather and poor sanitation practices, and among children. Some 800 million people are infected. Trichuriasis (infection with Trichuris trichiura) is not foreign to the United States; it occurs in the southern US. The term roundworm is in contrast to a flatworm.
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A nematode member of the phylum Nematoda, commonly confined to the parasitic forms.

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round·worm 'rau̇n-.dwərm n NEMATODE also a related round-bodied unsegmented worm (as an acanthocephalan) as distinguished from a flatworm

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round·worm (roundґwərm) nematode.

Medical dictionary. 2011.

Look at other dictionaries:

  • Roundworm — Round worm , n. (Zo[ o]l.) A nematoid worm. [1913 Webster] …   The Collaborative International Dictionary of English

  • roundworm — ► NOUN ▪ a nematode worm, especially a parasitic one found in the intestines of mammals …   English terms dictionary

  • roundworm — [round′wʉrm΄] n. NEMATODE …   English World dictionary

  • roundworm — UK [ˈraʊndˌwɜː(r)m] / US [ˈraʊndˌwɜrm] noun [countable] Word forms roundworm : singular roundworm plural roundworms a small worm that lives in the stomachs of people and some animals …   English dictionary

  • roundworm — [[t]ra͟ʊndwɜː(r)m[/t]] roundworms N VAR A roundworm is a very small worm that lives in the intestines of people, pigs, and other animals …   English dictionary

  • roundworm — noun Date: 1565 nematode; also a related round bodied unsegmented worm (as a spiny headed worm) as distinguished from a flatworm …   New Collegiate Dictionary

  • roundworm — /rownd werrm /, n. any nematode, esp. Ascaris lumbricoides, that infests the intestine of humans and other mammals. [1555 65; ROUND1 + WORM] * * * …   Universalium

  • roundworm — noun /ˈrawndˌwərm/ An invertebrate animal of the phylum Nematoda. Many species of roundworms are parasites. Syn: nematode …   Wiktionary

  • roundworm — round|worm [ˈraundwə:m US wə:rm] n a small round ↑parasite that lives in the bodies of animals and sometimes humans →↑tapeworm, worm ↑worm …   Dictionary of contemporary English

  • roundworm — round|worm [ raund,wɜrm ] noun count a small WORM that lives in the stomachs of people and some animals …   Usage of the words and phrases in modern English

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