As a noun terms
is .
As a verb parasitises is
(parasitise).
terms
English
Noun
(head)
Statistics
*
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parasitises
English
Verb
(head)
(parasitise)
parasitise
English
Alternative forms
* parasitize (US)
Verb
To live on or in a host organism as a parasite.
Derived terms
* parasitisation
* parasitism
* parasitoid