A glass bottle is a container made of glass, usually with a narrow neck, used to store and transport liquids. The term 'glass bottle' can also refer to three other types of containers: a CRUET, a VIAL, and a PHIAL. A CRUET is a small glass or ceramic container with a stopper, used for holding condiments such as oil or vinegar. A VIAL is a small cylindrical container, typically made of glass, used to store and transport liquid or powder medications. A PHIAL is a small glass bottle, usually with a stopper, used to store and transport liquids such as perfumes or medicines.