Cymbiform is an adjective used to describe something that has a shape similar to a boat or a crescent moon. Some synonyms for cymbiform include boat-shaped, crescent-shaped, moon-shaped, arcuate, and falcate. Other possible options include curved, arched, semicircular, and half-moon shaped. In botany, cymbiform is used to describe certain plant leaves that are shaped like a boat or a crescent moon. In medicine, the term may also be used to describe a certain type of abnormality found in the shape of certain body parts such as the kidney. Understanding synonyms for cymbiform can help you better describe and identify certain objects and traits.