fanshaped

Fanshaped is an adjective used to describe objects or forms that widen from a narrow point to a broad, curved edge, resembling a handheld fan. The term is used across disciplines to describe geometries that share a broad outward flare from a central origin. As a descriptive term, it does not denote a specific standardized measurement, but rather a qualitative shape.

In botany, fanshaped describes leaves that are palmate, with lobes radiating from a common point, as seen in maples and horse chestnut. In architecture and design, fanshaped forms appear in fan vaults, arches with radiating ribs, and openings with curved, fan-like heads; such motifs are characteristic of various historical styles and neo-Gothic revivals. In geology, alluvial fans are commonly described as fan-shaped landforms where sediments spread out in a cone-like apron at the mouth of a canyon or channel.

In usage, the term emphasizes appearance rather than function and is typically used in descriptive or comparative contexts. Related terms include palmate, fan-shaped, and radiating or spreading shapes.