单词 | sipunculus |
释义 | Sipunculusn. Zoology. Originally: any animal of the group Sipuncula; = sipunculan n. In later use chiefly as the genus name Sipunculus. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > class Gephyrea > group Sipunculoidea > family Sipunculidae > member of genus Sipunculus Sipunculus?a1808 ?a1808 Universal Syst. Nat. Hist. XIII. 491 There are five genera [of worms], viz. Gordius, Lumbricus, Hirudo, Sipunculus, and Planaria, that never enter the animal body at all, unless by accident. 1841 E. Forbes Hist. Brit. Starfishes 255 It is very probable that several other minute Sipunculi inhabit the British seas. 1877 T. H. Huxley Man. Anat. Invertebrated Animals v. 247 A larval Sipunculus about 1/ 12 of an inch long. 1903 Jrnl. Chem. Soc. 84 ii. 741 Haemerythrin, the pink colouring matter in the blood of Sipunculus and a few other worms, is contained in the blood corpuscles. a1933 J. A. Thomson Biol. for Everyman (1934) I. ix. 166 Sipunculids, e.g. Sipunculus, and the Priapulids, e.g. Priapulus..are different from all other worms, and from one another. 1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) iii. 280/1 Sipunculus swims briefly by contracting its body. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online June 2022). < n.?a1808 |
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