bo·tan·i·cal 
(b
ə-t
ăn
ĭ-k
əl) also
bo·tan·ic (-t
ăn
ĭk)
adj.1. Of or relating to plants or plant life.
2. Of or relating to the science of botany.
n. A drug, medicinal preparation, or similar substance obtained from a plant or plants.
[From Late Latin botanicus, from Greek botanikos, from botanē, fodder, plants.]
bo·tani·cal·ly adv.