You searched for: “epizoon
epizoon (s) (noun), epizoa (pl)
An animal organism that lives on the surface of a host animal; ectozoon: Fleas are external parasites and are known to be epizoa because they obtain nourishment from the host, as a dog, without killing it.
A parasitic flea is living on the surface of a dog.
Word Info image © Copyright, 2006.