a parasitic arachnid that attaches itself to the skin of a terrestrial vertebrate from which it sucks blood, leaving the host when sated. Some species transmit diseases, including tularemia and Lyme disease.
Suborder Ixodida, order Acarina (or Acari)
informal a parasitic louse fly.
Old Englishticia, of Germanic origin; related to Dutch teek and German Zecke