noun🔗Share三葉虫An extinct arthropod of the class Trilobita, whose body had three large lobes."While studying fossils in class, Sarah learned that a trilobite is an ancient sea creature with a body divided into three distinct parts. "授業で化石を研究しているうちに、サラは三葉虫が、体が三つの部分に分かれた古代の海の生き物であることを知りました。archaeologyanimalbiologygeologyorganismsciencehistoryChat with AIVocabulary GamePractice Reading
