释义 |
pro·ven·tric·u·lus \ˌ ̷ ̷ ̷ ̷ˈtrikyələs\ noun also pro·ven·tri·cule \prōˈven.trəˌkyül\ (plural proventricu·li \-yəˌlī\ ; also proventricules) Etymology: New Latin proventriculus, from pro- (I) + ventriculus 1. : the glandular or true stomach of a bird situated between the crop when a crop is present and the gizzard and usually separated from the gizzard by a constriction 2. : a muscular dilatation of the foregut in front of the midgut in most mandibulate insects that is usually armed internally with chitinous teeth or plates for triturating food 3. : the thin-walled sac in front of the gizzard of an earthworm : crop |