Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.
  • Black's Law Dictionary: 2nd Edition

    The male parent He by whom a child is begotten. As used in law, this term may (according to the context and the nature of the instrument) include a putative as well as a legal father, also a stepfather, an adoptive father or a grandfather, but is not as wide as the word "parent," and cannot be so construed as to include a female. Lind v. Burke, 56 Neb. 785, 77 N. W. 444; Crook v. Webb, 125 Ala. 457, 28 Southi 384; Cotheal v. Cotheal, 40 N. Y. 410; Lantznes-ter v. State, 19 Tex. App. 321; Thornburg v. American Strawboard Co., 141 Ind. 443, 40 N. E. 1062, 50 Am. St Rep. 334.
    —Father-in-law. The father of one's wife or husband.
    —rFntative father. The alleged or reputed father of an illegitimate child. State v. Nestaval, 72 Minn. 415, 75 N. W. 725.