A device designed to assist in lactation among [i]human[/i] mothers for the purpose of filling bottles with milk for their children using suction.  

[[Milking machine]] is a more generic term for devices to induce lactation among any animal.  All breast pumps are milking machines, but if it is not for humans, (such as the especially popular cow milking machine) it's not a breast pump, but is a milking machine.  

Post #1715415 is an example of a breast pump. Post #97533 is a generic milking machine.

h4. See also

* [[Breast enlargement pump]] (a similar device designed for a different purpose)
搾乳機 搾乳器