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spandrel

spandrel

Danh từ

Số nhiều: spandrels

In architecture, this term refers to a specific geometric void. It is most frequently associated with decorative arts, as these spaces are often filled with mosaics or sculptures to mask the structural transition from a curve to a straight edge.

In the context of evolutionary biology, the term is used as a metaphor to describe traits that lack their own adaptive purpose. These biological spandrels are incidental consequences of other evolutionary changes, meaning they exist not because they provide a survival advantage, but because they are structural byproducts of a different, beneficial adaptation.

Ý nghĩa

Danh từspandrel

The triangular space between the outer curve of an arch and the rectangular frame or enclosing wall that surrounds it.

The architect decided to fill each spandrel with a carved floral motif.

Danh từspandrel

The space between the curve of an arch and the rectangular area of a wall, specifically in the context of a bridge or viaduct.

The bridge's spandrels were reinforced to support the heavy road deck above.

Danh từspandrel

In evolutionary biology, a phenotypic trait that is a byproduct of the evolution of some other characteristic, rather than a direct product of adaptive selection.

The human chin is often cited as a biological spandrel, appearing as a result of other jaw developments.

Last Updated: July 15, 2026•Report an Error