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单词 plerocercoid
释义

plerocercoidn.adj.

Brit. /ˌplɪərə(ʊ)ˈsəːkɔɪd/, U.S. /ˈˌplɪroʊˈsərˌkɔɪd/
Origin: A borrowing from German. Etymon: German Plerocercoid.
Etymology: < German Plerocercoid (1903 in the passage translated in quot. 1906 at sense A.) < Hellenistic Greek πληρο- (see plerophory n.) + ancient Greek κέρκος tail (see cercus n.) + German -oid -oid suffix. Compare procercoid n.
Zoology.
A. n.
An unsegmented worm-like larval form of certain tapeworms which develops from the procercoid.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [noun] > class Cestodes > member of > segmented > larva
scolex1855
plerocercoid1906
1906 P. Falcke tr. M. Braun Animal Parasites Man 219 Human beings, like other hosts, can only acquire the broad tapeworm by ingesting its plerocercoids [Ger. Plerocercoide].
1928 Jrnl. Amer. Med. Assoc. 30 June 2081/1 I found the plerocercoids in pike.
1973 T. C. Cheng Gen. Parasitol. xiv. 488/2 Procercoids develop into solid, wormlike plerocercoids, each with one invaginated scolex at one end.
2003 Exper. Pathol. 103 174 The existence of such a reproductive mode is suggested by the highly advanced gonadal development in the plerocercoid.
B. adj.
Of, relating to, or of the nature of a plerocercoid.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [adjective] > relating to tape-worms > larval
plerocercoid1917
1917 Jrnl. Parasitol. 3 175 The plerocercoid larva of Dib. latus.
1938 Sci. Monthly Nov. 401 They reach the body of a second intermediate host..and develop there to the plerocercoid stage.
1992 National Forum 1 Nov. 12/4 If a fish eats the flea, the procercoid develops into the plerocercoid form in the fish's muscles.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.adj.1906
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