• Webster's Revised Unabridged Dictionary
    • n Gigerium (Anat) The muscular stomach, or gizzard, of birds.
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Century Dictionary and Cyclopedia
    • n gigerium In ornithology, the gizzard; the muscular or second stomach of a bird, succeeding the proventriculus or glandular stomach.
    • n gigerium In mammals, the so-called gizzard, a thickened muscular pyloric portion of the stomach, as in the great ant-eater, Myrmecophaga jubata.
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Webster's Revised Unabridged Dictionary
NL., fr. L. gigeria, pl., the cooked entrails of poultry