coarser

American

[kawr-ser, kohr-] / ˈkɔr sər, ˈkoʊr- /

adjective

Mathematics.

of or relating to a topology on a topological space whose open sets are included among the open sets of a second specified topology on the space.

Etymology

Origin of coarser

coarse + -er ⁴

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.

See Examples For:

coarser

Concentrations of coarser particles, which are also linked to respiratory illness, exceeded Kosovo's daily legal limit on 16 days.

From Barron's ● Aug. 28, 2026

Unlike Maricopa Highway 33, Hudson Ranch Road features coarser asphalt, no guardrails and more passing zones than turnouts.

From Los Angeles Times ● Aug. 13, 2026

They’re small, the colors are garish, and they’re coarser in feeling than the work for which he is best known.

From The Wall Street Journal ● Jan. 24, 2026

His analysis showed that the CONUS404 simulations were reliably capturing straight-line winds, as opposed to previous, coarser simulations that failed to capture many such events.

From Science Daily ● Nov. 2, 2023

Ex-Inspector Blore looked coarser and clumsier in build.

From "And Then There Were None" by Agatha Christie

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023