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单词 rhynchocoelom
释义

rhynchocoelomn.

Brit. /ˈrɪŋkə(ʊ)ˌsiːləm/, U.S. /ˈrɪŋkoʊˌsiləm/
Forms: 1800s rhyncocoelom, 1800s– rhynchocoelom, 1900s– rhynchocoelum.
Origin: A borrowing from German. Etymon: German Rhynchocoelom.
Etymology: < German Rhynchocoelom (O. Bürger 1890, in Zeitschr. f. wissensch. Zool. 50 5) < rhyncho- rhyncho- comb. form + coelom cœlome n.In form rhynchocoelum after Latin nouns in -um.
Zoology. Now disused.
= rhynchocoel n. 2.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Platyhelminthes > [noun] > class Nemertea > member of > body cavity in
rhynchocoelom1890
rhynchocoel1896
1890 Jrnl. Royal Microsc. Soc. 609 The characteristic cavity of the proboscis—or rhynchocœlom—is not to be compared with any structure in the Turbellaria.
1898 A. Sedgwick Student's Text-bk. Zool. I. vi. 264 (caption) r proboscis; rs proboscis sheath; rsh rhyncocoelom.
1902 Encycl. Brit. XXXI. 121 The cavity into which the proboscis is retracted, the rhynchocœlum, is formed by a split which appears in the mesoblast surrounding the epiblastic pit.
1937 Nature 9 Jan. 74/2 The proboscis lies in a closed cavity, the rhynchocœlom, on the dorsal side of the alimentary canal.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).
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n.1890
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