Wiktionary
n. The man from whom one inherits half of one's DNA and from whom men inherit their Y chromosome.
Wikipedia
- redirect Father
Usage examples of "biological father".
In at least a few cases, the trick worked, and the males proceeded to feed the hatch-lings as a biological father would have.
In other words, if Elian's biological father had lived in Ohio rather than Cuba, he would probably have been denied custody of Elian.
Might he not be lending unwitting assistance to the persecutor of his foster parents, collaborating in the assassination of his biological father's reputation?
Her biological father, I always told myself, was of no importance.
The idea of her biological mother's husband not being her biological father had never occurred to Sam, any more than the likelihood of him not being the villain of the piece.
My investigations told me nothing about a possible biological father.
Their success--they had found both his mother and his biological father, and they had discovered the reasons for Muffy's kidnapping, and for the attempts on the rest of them.