1.
a thick-walled muscular sac in the alimentary tract of birds where food is broken down by muscular action and by small stones ingested for that purpose
2.
a structure in invertebrates and fish where digestion takes place
3.
the stomach or alimentary canal generally
4.
the stomach of a chicken or other bird
1.
a thick-walled muscular sac in the alimentary tract of birds where food is broken down by muscular action and by small stones ingested for that purpose
2.
a structure in invertebrates and fish where digestion takes place
3.
the stomach or alimentary canal generally
4.
the stomach of a chicken or other bird