Webster's Revised Unabridged Dictionary · 1913

Flyblow

Flyblow , transitive verb

To deposit eggs upon, as a flesh fly does on meat; to cause to be maggoty; hence, to taint or contaminate, as if with flyblows. — Bp. Srillingfleet

Flyblow , noun

(Zoology) One of the eggs or young larva deposited by a flesh fly, or blowfly.