infest

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in·fest

(in-fest'),
To occupy a site and dwell ectoparasitically on external surface tissue, as opposed to internally (infect).
[L. infesto, pp. -atus, to attack]

infest

(ĭn-fĕst′)
v.
To live as a parasite in or on tissues or organs or on the skin and its appendages.

in′fes·ta′tion n.

infest

[infest′]
to attack, invade, and subsist on the skin or in the internal organs of a host. Compare infect.

in·fest

(in-fest')
To dwell on or in a host as a parasite.
[L. infesto, pp. -atus, to attack]

infest

infection with macroscopic ectoparasites