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Meaning of descending colon

descend'ing co'lon

Pronunciation: (kō'lun), [key]
— Anat. Anat.
  1. the last portion of the colon, beginning at the upper left abdomen in the region of the spleen and continuing downward along the left posterior wall to the sigmoid flexure. See diag. under
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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