The word "fusoid-ventricose" describes a shape that is narrow at one end and bulges out in the middle, resembling a spindle or hourglass. Synonyms for this term may include "waisted," "curvaceous," "hourglass-shaped," "tapered," "constricted," "pinched," "nipped," or "inverted pear-shaped." These words all describe a similar shape, where the outline narrows at one end and expands in the middle, before tapering off once again. They can be used to describe physical objects such as vases, bottles, or human figures, or even abstract concepts such as the flow of time or the trajectory of a story.