spadeshaped

Spadeshaped is an adjective used to describe objects that resemble the silhouette of a spade, the tool and playing-card symbol. The form is typically broad at the base and tapers to a pointed tip, with sides that may be straight, curved, or slightly concave. This basic outline can occur in various contexts, and the degree of taper or the exact curvature can vary.

In botany and plant morphology, spade-shaped leaves, bracts, or petals are described as having a broad, rounded base that narrows toward an acute apex, producing a roughly triangular or lance-like silhouette. The term aids identification and comparison in field guides and taxonomic keys, though it is a descriptive rather than a strictly defined morphometric category.

In design, architecture, and product development, spade-like silhouettes are used to characterize blades, ornamental motifs, and logos. The term is applied descriptively to convey a recognizable, familiar profile rather than a precise geometric specification.

Etymology: The term derives from the common noun spade, and ultimately from the shape of the tool and the card suit.

See also: spatulate, deltoid, lanceolate, cordate.