Campanular is an adjective that refers to something that is shaped like a bell or a bellflower. Some synonyms for campanular include bell-shaped, tubular, funnel-shaped, and flared. These words are appropriate to describe various objects and structures including flowers, musical instruments, and laboratory equipment. Bell-shaped is perhaps the most common synonym for campanular and is often used to describe the shape of flowers like lilies or tulips. Tubular or funnel-shaped are used to describe structures like flutes or lab equipment while flared is used to describe the shape of trumpet flowers. Regardless of the synonym used, campanular describes a unique and distinctive shape.