تعريف sperm donor في الإنجليزية الإنجليزية القاموس.
A man who donates sperm, usually anonymously, to a sperm bank or fertility clinic
A man who is the father of a woman's child(ren), but no longer has a relationship (or has a hostile relationship) with the woman, and is typically uninvolved with the children as well. (Compare with baby mama)