Dictionary.com
Thesaurus.com

surface area

American  
[sur-fis air-ee-uh] / ˈsɜr fɪs ˌɛər i ə /

noun

  1. the total space occupied by all surfaces or faces of an object.


Etymology

Origin of surface area

First recorded in 1820–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Children also have higher respiratory rates than adults, as well as larger lung surface area relative to their body size, resulting in higher doses of pollution per breath.

From Los Angeles Times • Apr. 3, 2026

If the crystals clump, they lose surface area needed to process more heme efficiently.

From Science Daily • Mar. 19, 2026

Little said that many "basic frauds" are still effective, but fraudsters will "use systems to increase the surface area of their attack".

From BBC • Mar. 14, 2026

When you shape the loaf yourself, you create more surface area.

From Salon • Mar. 11, 2026

The pencil was to form a hole in the powder, increasing its surface area, according to Quentin’s idea.

From "October Sky" by Homer Hickam