The vein associated with the mammary glands, often involved in blood circulation during lactation.

In a broader biological context, the term can refer to veins in other mammals as well.

अन्य स्तनधारियों में नस

English Usage: Researchers studied the mammary vein in different species of mammals.

Hindi Usage: शोधकर्ताओं ने विभिन्न प्रजातियों के स्तनधारियों में स्तन नस का अध्ययन किया।