from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The main duct of the lymphatic system, ascending through the thoracic cavity in front of the spinal column and discharging lymph and chyle into the blood through the left subclavian vein.

from the GNU version of the Collaborative International Dictionary of English

  • adj. the great trunk of the lymphatic vessels, situated on the ventral side of the vertebral column in the thorax and abdomen. See Illust. of Lacteal.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the major duct of the lymphatic system


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