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单词 pentremite
释义

Definition of pentremite in English:

pentremite

noun ˈpɛntrəmʌɪt
  • A fossil blastoid echinoderm of the mostly North American genus Pentremites, having five spiracles surrounding the mouth.

Origin

Mid 19th century; earliest use found in Transactions of the Geological Society. From scientific Latin Pentremites, former genus name from penta- + ancient Greek τρῆμα hole, aperture + scientific Latin -ites, with omission of the second syllable, -ta-.

Definition of pentremite in US English:

pentremite

nounˈpɛntrəmʌɪt
  • A fossil blastoid echinoderm of the mostly North American genus Pentremites, having five spiracles surrounding the mouth.

Origin

Mid 19th century; earliest use found in Transactions of the Geological Society. From scientific Latin Pentremites, former genus name from penta- + ancient Greek τρῆμα hole, aperture + scientific Latin -ites, with omission of the second syllable, -ta-.

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更新时间:2025/6/19 3:16:19