A parasite that lives on the surface of a host organism; such as the Demodex mite, which lives in human hair and eyelashes.

plural of ectoparasite

Of or pertaining to ectoparasites.

The condition of being an ectoparasite. / Infection by an ectoparasite.

plural of ectoparasitism

In an ectoparasitic manner

To parasitise with ectoparasites

simple past tense and past participle of ectoparasitize