A 2 wheeled device, propelled using your legs pushing on pedals, connected to a mechanical system of gears to turn the wheels.
A bicyclic is a compound which has two rings of atoms in the molecule - which may be fused, as in naphthalene, or separate, as in biphenyl.
A bicycler is a person who rides a bicycle - another term for a bicyclist or cyclist.
A bicycle is a vehicle with two wheels, a steering handle, and a saddle seat, propelled by the action of a rider's feet upon pedals.
I suppose that you think to bicyclic molecules.
A bicyclobutane is a bicyclic hydrocarbon consisting of two separate cyclobutane rings joined by a single bond, or a highly strained, bicyclic hydrocarbon consisting of two fused cyclopropane rings.
Decalin is the term used to indicate decahydronaphthalene, it is a bicyclic organic compound.
Pinene (C10H16) is a bicyclic monoterpene chemical compound.
A benzopyran is a bicyclic heterocycle consisting of a benzene ring fused to that of pyran.
A benzothiopyran is a bicyclic heterocycle consisting of a benzene ring fused to that of thiopyran.
A benzotriazole is a bicyclic heterocycle consisting of a benzene ring fused to that of triazole.
A benzothiazole is a bicyclic heterocycle consisting of a benzene ring fused to that of thiazole.
A benzothiazine is a bicyclic heterocycle consisting of a benzene ring fused to that of thiazine.
A benzisoxazole is a bicyclic heterocycle consisting of a benzene ring fused to that of isoxazole.
A benzoxazole is a bicyclic heterocycle consisting of a benzene ring fused to that of oxazole.
An amanitine is a bicyclic oligopeptide, found in Amanita phalloides, the death cap mushroom, which serves as a deadly amatoxin.