proventriculus
/ˌprəʊvenˈtrɪkjʊləs/noun
(pl. proventriculi /-laɪ/)
1- Zoology the narrow glandular first region of a bird's stomach between the crop and the gizzard【动】（鸟的）前胃。
1.1
- the thick-walled muscular expansion of the oesophagus above the stomach of crustaceans and insects（甲壳纲动物和昆虫胃上端的）前胃。
词源
mid 19th cent.: from PRO-2 'before'+Latin ventriculus 'small belly'，diminutive of venter,ventr- 'belly'.