Dictionary:

lactiferous

  (lăk-tĭf'ər-əs)

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1. Producing, secreting, or conveying milk.
2. Botany. Yielding latex.

Producing, secreting, or conveying milk.

Conveying milk.

• l. ducts — appearing first as epithelial diverticula which invade the mammary mesenchyme from the mammary buds, the precursors of the teats, these solid cords of cells later cavitate to produce lactiferous ducts.
• l. sinus — large cavity, continuous with the lactiferous ducts in mammary tissue, which serves as a reservoir for accumulated milk in the mammary gland until it is released at milking or suckling via the teat sinus and teat canal; is a combination of gland and teat sinuses.