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单词 anaspid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
an•as•pid  (ə naspid),USA pronunciation n. [Paleontol.]
  1. Paleontologyany member of an extinct order, Anaspida, of small, freshwater jawless fishes of the Silurian and Devonian periods, characterized by a single nostril, narrow rows of scales, and, usually, an armor-plated head.
  • Neo-Latin Anaspida name of the order, equivalent. to an- an-3 + Greek aspid- (stem of aspís shield) + -a neuter plural noun, nominal ending

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