- the glandular portion of the stomach of birds, in which food is partially digested before passing to the ventriculus or gizzard.
- a similar enlargement in the alimentary tract of several invertebrates, variously modified for maceration and digestion.
Origin of proventriculus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for proventriculus
One specimen, two inches long, reached from the crop to the proventriculus.Parasites
T. Spencer Cobbold
The first appears like an elongated dilatation of the œsophagus, forming the Proventriculus or glandular stomach.The Anatomy of the Human Peritoneum and Abdominal Cavity
George. S. Huntington
- the first part of the stomach of birds, the gizzard
- the thick muscular stomach of crustaceans and insects; gizzard
C19: from New Latin, from Latin pro- 1 + ventriculus little belly, from venter belly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012