ectozoon
Học thuậtThân thiện
Definition
- Noun:
- An external parasite: An organism that lives on the outside of its host's body, deriving nutrients and often causing harm or irritation. This includes parasites like fleas, lice, and ticks.
Usage
- The term is a technical, scientific word used primarily in biology, parasitology, and veterinary medicine. It describes the physical location (ecto- meaning "outside") and relationship (parasitism) of the organism.
- It is often used in contrast to "entozoon" (an internal parasite).
Examples
- Noun:
- The veterinarian identified the mite as an ectozoon causing the dog's skin irritation.
- Fleas are a common example of an ectozoon.
Advanced Usage
- "Ectozoic" (adjective): Pertaining to or characteristic of an ectozoon.
- The study focused on the ectozoic life cycle of the louse.
Variants and Related Words
- Ectoparasite: A more common synonym for ectozoon.
- Epizoon: An alternative, less common term with the same meaning.
- Entozoon: (noun) An internal parasite, forming a contrasting pair with ectozoon.
Synonyms
- Ectoparasite
- External parasite
- Epizoon
Antonyms
- Entozoon
- Endoparasite (an internal parasite)
Noun
- any external parasitic organism (as fleas)