trilobite: Meaning and Definition of

tri•lo•bite

Pronunciation: (trī'lu-bīt"), [key]
— n.
  1. any marine arthropod of the extinct class Trilobita, from the Paleozoic Era, having a flattened, oval body varying in length from 1 in. (2.5 cm) or less to 2 ft. (61 cm).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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