Biologic \Bi`o*log"ic\, Biological \Bi`o*log"ic*al\, a.
1. Of or relating to biology. -- {Bi`o*log"ic*al*ly}, adv.
[1913 Webster]
2. related by blood; -- of parents and children; --
contrasted with {adoptive}, {adopted}, or {foster}; as,
Mary was adopted directly from the maternity hospital and
never met her biological mother.
Syn: biologic.
[WordNet 1.5]