Umbelliform is an adjective that describes a shape similar to an umbrella or a parasol. It is derived from the Latin word umbella, meaning "a little umbrella." Synonyms for umbelliform include parasol-like, umbrella-shaped, radiate, and rayed. These words all describe a form that is round and spreads out from a central point, much like the spokes of an umbrella or a parasol. Other related words could include circular, disc-shaped, or even orbicular. Whether used to describe plants or objects, umbelliform is a useful term for highlighting this particular shape or form.