Generally an opaque white-colored liquid of high water content but also rich in fat, proteins and simple carbohydrates. Not limited to mammal-produced liquids, milk is a noun that applies directly to liquid of this structure produced by nut fruits such as coconuts, walnuts, almonds, cashews, macadamias, pecans, etc.
That baby is milk drunk..addicted to the boobies.
The hardest part about being vegan is waking up at 5 AM to milk the walnuts.
Breastfed babies receive the majority of their nutrition and hydration from the milk their beautiful mamas produce.