| 单词 | tube-foot |
| 释义 | > as lemmastube-foot tube-foot n. one of the numerous ambulacral tubes of an echinoderm. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > member of > parts of > ambulacrum > ambulacral tube podion1858 pedicel1883 tube-foot1888 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 551 The tube feet are either partially or completely retractile. < as lemmas |
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