internal mammary vein
noun
variants
or internal thoracic vein
: a vein of the trunk on each side of the body that accompanies the corresponding internal mammary artery and empties into the brachiocephalic vein
Cite this Entry
“Internal mammary vein.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/internal%20mammary%20vein. Accessed 31 Oct. 2025.
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