parasite
PAIR-uh-syt
/ˈpærəsaɪt/
An organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense.
In veterinary care, this usually refers to fleas, ticks, or intestinal worms.
The story behind the word. From the Greek 'parasitos,' where 'para' means 'beside' and 'sitos' means 'food.' It originally described a person who flattered others to get a free meal, literally 'eating beside' them.
Word relationships
- pest: A more general term for annoying or destructive organisms.
- host: The organism that the parasite lives on or in.
Word family
- parasitic (adjective): Of or relating to a parasite.
Collocations
- intestinal parasite
- external parasite
- parasite prevention
Example sentences
- "The veterinarian checked the dog's stool for any signs of an internal parasite." Veterinary check-up.
- "Monthly medication is the best way to protect your pet from a heartworm parasite." Preventative care.
Memory hook
A parasite is like a 'PAIR' of 'SITES' (eyes) watching your food. Uninvited dinner guest.
When not to use
Can be used metaphorically for people, but in this context, it is strictly biological.
Fun facts
- Some parasites can actually control the behavior of their hosts to ensure their own survival.
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