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单词 monocystid
释义

monocystidn.adj.

Brit. /mɒnə(ʊ)ˈsɪstɪd/, U.S. /ˌmɑnəˈsɪstᵻd/
Origin: A borrowing from Latin. Etymons: Latin Monocystidea; Latin Monocystidae.
Etymology: Originally < scientific Latin Monocystidea, group name (1863 or earlier) < ancient Greek μονο- mono- comb. form + κύστις (see cyst n.) + scientific Latin -idea (see -id suffix3), after scientific Latin Monocystis , genus name (F. Stein 1848 in Arch. f. Anat. u. Physiol. 183; compare German Monocystideen (plural) in the same source). In later use < scientific Latin Monocystidae, family name < Monocystis + -idae (see -id suffix3). Compare polycystid n.
Zoology.
A. n.
A gregarine parasite of the former group Monocystidea or the family Monocystidae, characterized by adults that are aseptate.Such gregarines are typified by the genus Monocystis, whose members are parasites of earthworms.
ΘΚΠ
the world > animals > invertebrates > protozoa > class Sporozoa > subclass Teleosporidia > [noun] > order Gregarinida > member of > member of suborder Monocystidea
monocystid1882
1882 E. R. Lankester in Q. Jrnl. Microsc. Sci. 22 58 The Monocystid Adelia ovata.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 859 The Monocystids of the Earthworm.
1963 Parasitology 53 492 During this phase, unlike the majority of monocystids which infect the body cavity of oligochaetes, the trophozoites of this species are relatively immobile.
1991 Fragmenta Faunistica (Warsaw) 35 208 (caption) Incidence and rate of infection by monocystids..of..Lumbricus terrestris L.
B. adj.
Designating a gregarine in which the adult is aseptate; of or relating to the former group Monocystidea or the family Monocystidae.
ΚΠ
1920 Q. Jrnl. Microsc. Sci. 64 239 Some of those who have worked on the Monocystid gregarines have been more successful.
1946 Parasitology 37 67/1 The parasite is much bulkier than are most of the species of monocystid gregarines parasitizing the larger earthworms.
1991 Fragmenta Faunistica (Warsaw) 35 203 Earthworm infection by monocystid gregarines was studied in the soil of Warsaw green areas differently exposed to urbanization.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).
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n.adj.1882
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