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pinnigrade

[pin-i-greyd]

adjective

  1. moving by means of finlike parts or flippers, as the seals and walruses.

noun

  1. a pinnigrade animal.

pinnigrade

  1. Walking by means of finlike organs or flippers, as seals and walruses.

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Word History and Origins

Origin of pinnigrade1

From the New Latin word pinnigradus, dating back to 1840–50. See pinna, -i-, -grade

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pinnerpinniped

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