Birth Father Definition
noun
A person's father related biologically rather than by adoption.
Webster's New World
One's biological father.
American Heritage Medicine
The genetic father of a child (as opposed to an adoptive or stepfather)
Wiktionary
Other Word Forms of Birth Father
Noun
Singular:
birth father
Plural:
birth-fathersOrigin of Birth Father
By extension from birth mother
From Wiktionary
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