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parasitism

parasitism

3 7.6
A relationship where one living thing lives on or in another and harms it
  • noun
  • /ˈpærəˌsaɪtɪzəm/
  • Specialized
translation icon : parasitismo
  • There, scientists observed virtually no springtime parasitism by wasps of the apple-feeding leafrollers.
  • intestinal parasitism
  • social parasitism

The dividing line between parasitism and symbiosis is not so clear.

Examples

  • But in the most egregious cases of brood parasitism, why don't host parents take a stand?

  • In summer, parasitism of apple leafrollers in the orchard can exceed 50 percent.

    Academic text (2004)
  • It's a direct form of parasitism upon the human race involved through something that appears to be life giving.

  • Their parasitism turns out to be not financial but emotional; but it is parasitism nonetheless.

    Academic text (1993)
  • Now, of course, this sort of brood parasitism, you might think, is fairly simple.

  • The dividing line between parasitism and symbiosis is not so clear.

  • More importantly, the following May, they observed parasitism of apple leafrollers in the orchards near the three garden sites.

    Academic text (2004)
  • With improved understanding of links between habitat structure, species interactions, physical processes, and parasitism, perhaps disease ecologists can better anticipate outbreaks in wildlife populations.

    Academic text (2010)
  • In nature, parasitism occurs when one organism, like a tapeworm, lives in the intestines of a host and benefits at its expense.

  • The parasitism of the cuckoo bird is well-known, as it lays its eggs in the nests of other birds and relies on them to raise its young.

Synonyms

parasitization
vsparasitism
  • Specialized
8.6

One organism living on or in another and harming it

is a lasting relationship where one benefits at the other's expense, rarely causing death

Antonyms

443 2.5

Working together with other people to reach a common goal

mutualism
  • Specialized
1 6.7

A partnership where two different animals or plants help each other

How Harmful

parasitism
  • Specialized
3 7.6
commensalism
  • Specialized
1 9.1
mutualism
  • Specialized
1 6.7

Surface Forms

parasitism singular
parasitisms plural

Morphology

parasitism = parasite (transparent) = parasite + ism

Formed from 'parasite' + '-ism' denoting the state/relationship; the meaning is directly inferable from the base.

Etymology

Parasitism comes from Greek parts para- meaning 'beside' and sitos meaning 'food', and a parasite was originally 'one who eats at another's table'. So, parasitism now describes a relationship where one living thing benefits by taking food or shelter from another, often harming the other.