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Lactiferous ducts

The ducts, numbering 15 or 20, which drain the lobes of the mammary gland; they open at the nipple.

Synonym: ductus lactiferi, canalicular ducts, galactophore, galactophorous canals, galactophorous ducts, mamillary ducts, mammary ducts, milk ducts, tubuli galactophori, tubuli lactiferi.