Consisting of or having two cycles.
Botany Composed of or arranged in two distinct whorls, as the petals of a flower.
Chemistry Relating to or being a molecule containing two rings, either by a fused or bridged arrangement.
Relating to a compound having two closed rings. Naphthalene is a bicyclic compound.
Composed of or arranged in two distinct whorls, as the petals of a flower.