noun🔗ShareTrilobitesAn extinct arthropod of the class Trilobita, whose body had three large lobes."During our class field trip to the museum, we saw fossils of trilobites, ancient sea creatures easily identified by the three distinct lobes running lengthwise down their bodies. "Lors de notre sortie scolaire au musée, nous avons vu des fossiles de trilobites, d'anciennes créatures marines facilement identifiables grâce aux trois lobes distincts qui parcourent leur corps dans le sens de la longueur.geologyarchaeologyanimalbiologysciencehistoryorganismChat with AIVocabulary GamePractice Reading