milk sibling
noun1
A person who is not one's biological sibling but was nursed by the same woman as oneself.
- But knowingly to marry someone who is a milk sibling is, as Sidi told me gravely, to go against Islam.2004, Rebecca Popenoe, Feeding Desire: Fatness, Beauty, and Sexuality Among a Saharan People, Routledge, published 2004, →ISBN, page 94:
- Hyponyms
- milk brother, milk sister