单词	ectoparasite
释义	ectoparasite noun ec·​to·​par·​a·​site ˌek-tō-ˈper-ə-ˌsīt  -ˈpa-rə- : a parasite that lives on the exterior of its host ectoparasitic ˌek-tō-ˌper-ə-ˈsi-tik  -ˌpa-rə- adjective Example Sentences Recent Examples on the Web Studying the ancestors of living ectoparasites, which live on the outside of their hosts, can help scientists understand how these pests evolved over millions of years into the species that live among and on us today. Brian Handwerk, Smithsonian, 10 Dec. 2019 Mature sea lice are gray, lentil-sized crustaceans, also called ectoparasites, that look like small, fanged tadpoles. Amanda Little, WIRED, 23 May 2018 All the cats had irritated, painful ears consistent with a contagious ectoparasite, the document stated. Jennifer Stockinger, Twin Cities, 23 May 2017 Word History Etymology International Scientific Vocabulary First Known Use 1861, in the meaning defined above Medical Definition ectoparasite noun ec·​to·​par·​a·​site ˌek-tō-ˈpar-ə-ˌsīt  : a parasite that lives on the exterior of its host compare endoparasite
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