shell sac

English

shell sac (plural shell sacs)

(zoology) The sac in which the shell of a mollusc is secreted during development; (now especially) the fold of mantle in which a cephalopod secretes its pen or gladius.
- 2017, Danna Staaf, Squid Empire, ForeEdge, →ISBN, page 115:
  Baby cephalopods, even octopuses, all have a shell sac, which is comparable to the mantle folds that baby clams and snails use to make their shells.

单词	shell sac
释义	shell sac English Noun shell sac (plural shell sacs) (zoology) The sac in which the shell of a mollusc is secreted during development; (now especially) the fold of mantle in which a cephalopod secretes its pen or gladius. 2017, Danna Staaf, Squid Empire, ForeEdge, →ISBN, page 115: Baby cephalopods, even octopuses, all have a shell sac, which is comparable to the mantle folds that baby clams and snails use to make their shells. Anagrams shellacs
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