The Collaborative International Dictionary
Alitrunk
Alitrunk \Al"i*trunk\, n. [L. ala wing + truncus trunk.]
(Zo["o]l.)
The segment of the body of an insect to which the wings are
attached; the thorax.
--Kirby.
Wiktionary
alitrunk
n. (context zoology English) The segment of an insect's body to which the wings are attached; the thorax or mesosoma.