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um·bil·i·cal .əm-'bil-i-kəlalso .əm-bə-'lī-kəl adj
1) of, relating to, or used at the navel <\umbilical infection>
2) of or relating to the central abdominal region that is situated between the right and left lumbar regions and between the epigastric region above and the hypogastric region below <\umbilical pain>
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um·bil·i·cal (əm-bilґĭ-kəl) [L. umbilicalis] pertaining to the umbilicus.Medical dictionary. 2011.