单词	parfocal
释义	parfocal adjective par·​fo·​cal ˌpär-ˈfō-kəl  : being or having lenses or lens sets (such as eyepieces) with the corresponding focal points all in the same plane parfocality ˌpär-fō-ˈka-lə-tē  noun parfocalize ˌpär-ˈfō-kə-ˌlīz  transitive verb Word History Etymology Latin par equal + English focal First Known Use circa 1886, in the meaning defined above Medical Definition parfocal adjective par·​fo·​cal (ˈ)pär-ˈfō-kəl  : having corresponding focal points all in the same plane : having sets of objectives or eyepieces so mounted that they may be interchanged without varying the focus of the instrument (as a microscope) with which they are used
随便看	negritos negritude negritudes negro Negro negro ant negro bug negro cloth negro coffee negro cotton Negro-African negroer negroes negroest negrohead negrohead beech negroid negroidder negroiddest negroider negroidest negroids negroism negroisms negroize

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