Protozoa (n.)youdaoicibaDictYouDict[Protozoa 词源字典]
1828, from Modern Latin Protozoa, coined 1818 by German zoologist Georg August Goldfuss (1782-1848) from Greek protos "first" (see proto-) + zoia, plural of zoion "animal" (see zoo). Originally including sponges and corals; current sense is from 1845. Related: Protozoon (aingular); Protozoan.[Protozoa etymology, Protozoa origin, 英语词源]
CiliatayoudaoicibaDictYouDict
"With plural concord. An order, class, or subphylum comprising the ciliate protozoans; (also ciliata) protozoans of this group (collectively or individually); ciliates", Mid 19th cent.; earliest use found in Annals and Magazine of Natural History. From scientific Latin Ciliata, group name from post-classical Latin ciliatus + -a.
agameteyoudaoicibaDictYouDict
"A stage in the life cycle of a protozoan which functions as a non-sexual reproductive cell", Early 20th cent.; earliest use found in Journal of Medical Research. From German Agamete from a- + Gamete.
cryptosporidiumyoudaoicibaDictYouDict
"A parasitic coccidian protozoan found in the intestinal tract of many vertebrates, where it sometimes causes disease", Early 20th century: from crypto- 'concealed' + modern Latin sporidium 'small spore'.
muciferousyoudaoicibaDictYouDict
"Containing, secreting, or covered with mucus or mucoid material; conveying mucus; (in later use) specifically designating the mucocysts of protozoans, especially in muciferous body", Mid 19th cent.; earliest use found in History of the Berwickshire Naturalists' Club. From muci- + -ferous.
trypanosomeyoudaoicibaDictYouDict
"A single-celled parasitic protozoan with a trailing flagellum, infesting the blood", Early 20th century: from Greek trupanon 'borer' + -some3.
protozoologyyoudaoicibaDictYouDict
"The branch of zoology which deals with protozoans; the branch of medicine which deals with disease-causing parasitic protozoans", Early 20th cent.; earliest use found in The Nineteenth Century. From Protozoa + -ology.
polygastricyoudaoicibaDictYouDict
"Having many stomachs or digestive cavities; specifically of or relating to the former group Polygastrica of protozoans whose food-containing vacuoles were thought to be separate digestive organs (now historical )", Mid 19th cent.; earliest use found in The Lancet. From poly- + gastric, after monogastric and scientific Latin Polygastrica.