from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The segment of an insect's body to which the wings are attached; the thorax or mesosoma.
from the GNU version of the Collaborative International Dictionary of English
- n. The segment of the body of an insect to which the wings are attached; the thorax.
from The Century Dictionary and Cyclopedia
- n. The segment of the posterior thorax of an insect to which the wings and two posterior pairs of legs are attached.
Latin ala wing + truncus trunk. (Wiktionary)