ectozoon

/ˌɛktoʊˈzoʊɒn/
noun
  1. A parasite that lives on the outer surface of a host animal; same as ectozoan.
    • The ectozoon caused the cat to scratch constantly.
    • Researchers discovered a new ectozoon on deep-sea fish.
    • An ectozoon like a tick can transmit diseases to its host.
Antonyms
What does "ectozoon" mean? | whatsthatwordmean | whatsthatwordmean