rostrocarinate / ˌrɒs troʊˈkær əˌneɪt, -nɪt /

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rostrocarinate 的定义

n. 名词 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.