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单词 θ33445
释义
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > subphylum Eleutherozoa > class Echinoidea > member of (sea-urchin) > parts of > piece forming oral skeleton (2)
rotula1854

Zoology. Each of five radial elements forming part of the oral apparatus (Aristotle's lantern) of echinoids; = rotule, n. 2b.

rotule1955

Zoology. = rotula, n. 4a.

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