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rostrocarinate

[ros-troh-kar-uh-neyt, -nit]
noun
  1. a chipped flint with a beaklike shape found in the late Tertiary sediments of Suffolk, England, once thought to have been worked by humans but now known to have been shaped by natural nonhuman agencies.
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Origin of rostrocarinate

1950–55; rostro- (combining form representing Latin rōstrum rostrum) + carinate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018