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concave

Tính từNgoại động từ

This term describes a hollow or sunken geometry, evoking the image of a cave or a bowl. It is primarily used in technical, scientific, or architectural contexts to describe how a surface reflects light or holds volume. It carries a neutral, descriptive tone rather than an emotional one. In optics, it is strictly contrasted with convex. While a convex surface bulges outward, a concave surface dips inward, creating a focal point that can either concentrate light or distort a reflection depending on the distance of the observer.

Ý nghĩa

Tính từ

[something]

"The mirror has a concave surface that magnifies the image."

Ngoại động từ

[someone][something]

"The artisan worked to concave the base of the bowl."

Last Updated: May 28, 2026•Report an Error