Peyer's glands

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Pey´er's glands`

1.(Anat.) Patches of lymphoid nodules, in the walls of the small intestiness; agminated glands; - called also Peyer's patches. In typhoid fever they become the seat of ulcers which are regarded as the characteristic organic lesion of that disease.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.