albedo.

The proportion of incoming radiation that a surface reflects, commonly discussed for sunlight.

Use it for

Words that belong together

• high albedo
• planetary albedo

On the page

Fresh ice raised the plain’s albedo.

The planet’s low albedo made it faint despite its size.

Usage notes

Primary category: sci-fi. Forms: Singular albedo; plural albedos. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.