Thesaurus.com
Dictionary.com
Showing results for penetrate. Search instead for Impenetrate.
Definitions

penetrate

[pen-i-treyt] / ˈpɛn ɪˌtreɪt /




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.

Like sunlight, the lamps emit two different types of ultraviolet wavelengths: UVA, which are longer and penetrate more deeply into the skin, and UVB, which are shorter and more easily burn the outer layers.

From Los Angeles Times • May 6, 2026

Weatherhead says the thickness of the skin affects how well red light can penetrate.

From BBC • May 2, 2026

The $700 area proved too tough to penetrate after three consecutive doji candles from Jan. 21 to Jan. 23.

From Barron's • Apr. 22, 2026

Since longer wavelengths of light can penetrate deeper into the body, a protein that responds to near-infrared light could allow researchers to reach cells that are otherwise difficult to access.

From Science Daily • Apr. 9, 2026

George Ferris fought the cold with dynamite, the only efficient way to penetrate the three-foot crust of frozen earth that now covered Jackson Park.

From "The Devil in the White City" by Erik Larson




Vocabulary lists containing penetrate