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n. pl. pro·ven·tric·u·li (-lī′)
1. The division of the stomach in birds that secretes digestive enzymes and passes food from the crop to the gizzard.
2. A similar digestive chamber in certain insects and worms.

[pro- + Latin ventriculus, stomach, diminutive of venter, belly.]

pro′ven·tric′u·lar (-lər) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -triculi (-ˈtrɪkjʊˌlaɪ)
1. (Zoology) the first part of the stomach of birds, the gizzard
2. (Zoology) the thick muscular stomach of crustaceans and insects; gizzard
[C19: from New Latin, from Latin pro-1 + ventriculus little belly, from venter belly]
ˌprovenˈtricular adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌproʊ vɛnˈtrɪk yə ləs)

n., pl. -tric•u•li (-ˈtrɪk yəˌlaɪ)
1. the glandular portion of the stomach of birds, in which food is partially digested.
2. the thin-walled front part of the stomach in certain invertebrates.
pro`ven•tric′u•lar, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
Chronic partial proventricular obstruction caused by multiple foreign bodies in a juvenile umbrella cockatoo.
2008: Recovery of divergent avian bornaviruses from cases of proventricular dilatation disease: identification of a candidate etiologic agent.
Proventricular samples were collected and fixed in 10% buffered formalin for 24 hours, followed by routine histology techniques.
A major recurrent problem facing the poultry industry is the incidence of proventricular lesions, including proventricular enlargement and/or other pathologies associated with proventriculitis (Bayyari et al., 1995).
Avian bomaviruses were first identified as the probable causative agent of proventricular dilatation disease in parrots in 2008 (1,2).
However, one of the top differentials with the following symptoms among macaws is proventricular dilatation disease (PDD).
These results indicated that the mucins in the proventricular mucosa might possess the functional differences.
We suggest caeca-like projections and the loss of large, proventricular teeth are apomorphies of Euphasmatodea.
There was petechiation to ecchymoses of the proventricular (Figure 3) and intestinal mucosa with resultant enteritis in the gastrointestinal system.
The trematodes of the genus Ribeiroia Travassos, 1939 are proventricular parasites of birds (with a few reports in rodents) from the Americas and Africa.