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词汇 cryptodont
释义

Definition of cryptodont in English:

cryptodont

noun ˈkrɪptə(ʊ)dɒnt
Zoology
  • 1Any of various extinct dicynodont reptiles constituting the Late Permian family Cryptodontidae, which lacked obvious teeth. rare.

  • 2Any of various chiefly extinct bivalve molluscs constituting the subclass or superorder Cryptodonta, the shells of which have no hinge teeth.

adjective ˈkrɪptə(ʊ)dɒnt
Zoology
  • Of or relating to the subclass or superorder Cryptodonta of molluscs.

Origin

Mid 19th century; earliest use found in Fraser's Magazine for Town and Country. From crypto- + -odont. In senses A. 1 and B. 1 after either scientific Latin Cryptodontia, former family name or scientific Latin Cryptodontidae, current family name.

Definition of cryptodont in US English:

cryptodont

nounˈkrɪptə(ʊ)dɒnt
Zoology
  • 1Any of various extinct dicynodont reptiles constituting the Late Permian family Cryptodontidae, which lacked obvious teeth. rare.

  • 2Any of various chiefly extinct bivalve molluscs constituting the subclass or superorder Cryptodonta, the shells of which have no hinge teeth.

adjectiveˈkrɪptə(ʊ)dɒnt
Zoology
  • Of or relating to the subclass or superorder Cryptodonta of molluscs.

Origin

Mid 19th century; earliest use found in Fraser's Magazine for Town and Country. From crypto- + -odont. In senses A. 1 and B. 1 after either scientific Latin Cryptodontia, former family name or scientific Latin Cryptodontidae, current family name.

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