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单词 helmet-shell
释义

> as lemmas

helmet-shell
helmet-shell n. see sense 5.
extracted from helmetn.
helmet-shell
5. (in full helmet-shell.) The shell of a mollusc of the genus Cassis.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > superorder Branchifera > order Prosobranchiata > section Siphonostomata > member of genus Cassis > shell of
helmet1753
Bombay shell1858
1753 Chambers's Cycl. Suppl. Cassis lævis, the smooth helmet shell, a name given by Rumphius, though very improperly, to the genus of shells called dolia and conchæ globosæ.
1756 P. Browne Civil & Nat. Hist. Jamaica ii. iii. 408 The..real Conques come next after the Helmets.
1776 E. M. da Costa Elements Conchol. 290 A Helmet, Cassis.
1863 J. G. Wood Illustr. Nat. Hist. (new ed.) III. 381 Cameos..that are cut from the Horned Helmet-shell are white.
extracted from helmetn.
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as lemmas
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