Definitions of sheep-tick
  1. noun
    wingless fly that is an external parasite on sheep and cattle
    synonyms: Melophagus Ovinus, sheep ked, sheep tick
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    type of:
    hippoboscid, louse fly
    bloodsucking dipterous fly parasitic on birds and mammals
  2. noun
    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
    synonyms: Ixodes ricinus, sheep tick
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    type of:
    hard tick, ixodid
    ticks having a hard shield on the back and mouth parts that project from the head
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