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anaspid

[ uh-nas-pid ]

noun

, Paleontology.
  1. any 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.


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Word History and Origins

Origin of anaspid1

< New Latin Anaspida name of the order, equivalent to an- an- 3 + Greek aspid- (stem of aspís shield) + -a neuter plural noun ending

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AnasaziAnastasia