trilobite

Meanings

1. 1
   noun

   an extinct Paleozoic marine arthropod with a segmented exoskeleton divided lengthwise into three lobes

   The shale slab preserved a complete trilobite with its three body lobes clearly visible.

From New Latin Trilobita, formed from Greek tri-, 'three,' + lobos, 'lobe,' with the noun-forming suffix -ite. The name refers to the two longitudinal furrows that divide the animal's body into three lobes.

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