单词 | ectozoon |
释义 | ectozoon in British English (ˌɛktəʊˈzəʊɒn) nounWord forms: plural -zoa (-ˈzəʊə) zoology a parasitic organism that lives on the outside of its host ectozoon in American English (ˌektəˈzouɑn, -ən) nounWord forms: plural -zoa (-ˈzouə) Biology any animal parasite, as the louse, that lives on the surface of its host (opposed to entozoon) Also: ectozoan Word origin [1855–60; ecto- + -zoon]This word is first recorded in the period 1855–60. Other words that entered Englishat around the same time include: barrage, boilerplate, lavabo, output, superheat-zoon is a combining form meaning “animal,” “organism” of the kind specified by the initialelement, often corresponding to zoological class names ending in -zoa, with -zoon used to name a single member of such a class. Other words that use the affix -zoon include: cytozoon, dermatozoon, entozoon, hematozoon, microzoon |
随便看 |
英语词典包含298861条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。