prothoracic
/ˌproʊθəˈræsɪk/
adjective
- Relating to the prothorax, the first segment of an insect's thorax.
- The prothoracic legs of the grasshopper are shorter than the others.
- The prothoracic segment of the beetle is covered by a hard shell.
- Scientists studied the prothoracic glands that control insect growth.