sheep-tick has definitions from the field of zoology
1
[ noun ] (zoology) parasitic on sheep and cattle as well as humans; can transmit looping ill in sheep (acute viral disease of the nervous system); a vector for Lyme disease spirochete

Related terms

hard_tick Ixodes

2
[ noun ] (zoology) wingless fly that is an external parasite on sheep and cattle

Related terms

louse_fly Melophagus

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