prothorax

Meanings

1. 1
   noun

   the front of the three segments of an insect's thorax, bearing the first pair of legs but no wings

   The mantis can rotate its head above an elongated prothorax.

Formed from pro-, 'before or front,' + thorax. The prothorax is the foremost insect thoracic segment, followed by the mesothorax and metathorax.

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