The phrase "mother breast" refers to a mother's nurturing and comforting nature, particularly when it comes to providing nourishment and love to her child by breastfeeding. Full definition
That's better than the 50 percent who breast - fed a decade ago, but it missed the government's goal of having 75 percent of mothers breast - feeding newborns in 2000. (abcnews.go.com)
It was designed to mimic mother breast not only in terms of shape but also in feel and mechanics. (babygearhub.net)
Although most American mothers breast - feed their newborns, more than half discontinue by six months. (articles.chicagotribune.com)