A helmet intended to be worn while riding a bicycle.

A device to which bicycles may be securely attached while not in use.

A legislative body consisting of two chambers or houses.

(mathematics, of a prism) Having a cap (in the shape of a pyramid) at each end / (chemistry, of a molecule) Having the shape of such a prism

A bicycle that does not have a freewheel, and only has a single gear ratio.

a type of bicycle with a banana seat and sissy bars

A device with saddle, pedals, and some form of handlebars arranged as on a bicycle, but used as exercise equipment rather than transportation.

(inorganic chemistry) An odorless, slightly basic substance which is soluble in water and often used to offset acidity.

A lane of a roadway designated for use by cyclists.

The state or quality of being bicultural