bi·o·log·i·cal 
(bī′ə-lŏjĭ-kəl) also bi·o·log·ic (-lŏjĭk)
(bī′ə-lŏjĭ-kəl) also bi·o·log·ic (-lŏjĭk)adj.
1. Of, relating to, caused by, or affecting life or living organisms: biological processes such as growth and digestion.
2. Having to do with biology.
3. Related by genetic lineage: the child's biological parents; his biological sister.
4. Being male or female by having the chromosomes for that sex: a biological female.
5. Of or relating to biological weapons: biological warfare.
n.
A biologic.
bi′o·logi·cal·ly adv.