proventriculus
noun
pro·ven·tric·u·lus ˌprō-ven-ˈtri-kyə-ləs 
plural proventriculi ˌprō-ven-ˈtri-kyə-ˌlī
-ˌlē
1
: the glandular or true stomach of a bird that is situated between the crop and gizzard
2
: a muscular dilatation of the foregut in most mandibulate insects that is armed internally with chitinous teeth or plates for grinding food
3
: the thin-walled sac in front of the gizzard of an earthworm
Word History
Etymology
New Latin
First Known Use
circa 1836, in the meaning defined at sense 1
Medical Definition
proventriculus
noun
pro·ven·tric·u·lus ˌprō-ven-ˈtrik-yə-ləs
plural proventriculi -ˌlī -ˌlē
-ˌlē : the glandular or true stomach of a bird that is situated between the crop and gizzard