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

The coarser material on top appeared to result from a subsequent event along the nearby San Andreas fault.

From Science Daily ● May 2, 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

By the vibrations, he learned also that the road had grown coarser.

From "Pax" by Sara Pennypacker

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