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词汇 pseudodeltidium
释义

Definition of pseudodeltidium in English:

pseudodeltidium

noun
  • (In certain fossil brachiopods) a single flat or convex plate which occurs instead of a deltidium and does not always completely cover the space between the beak and the hinge.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher.

Definition of pseudodeltidium in US English:

pseudodeltidium

noun
  • (In certain fossil brachiopods) a single flat or convex plate which occurs instead of a deltidium and does not always completely cover the space between the beak and the hinge.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher.

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