Coarse may refer to: * Bosnian Coarse-Haired Hound, developed by 19th century Bosnian hunters as a scent hound. * Coarse (behavior), vulgar behavior * Coarse bubble diffusers, produce 1/4 to 1/2 inch bubbles which rise rapidly from the floor of a wastewater treatment plant or sewage treatment plant tank. * Coarse fishing, an angling method, mostly popular throughout Europe. * Coarse sandpaper, a form of paper where an abrasive material has been fixed to its surface, allowing rapid removal of material by rubbing. * Coarse structure, on a set X is a collection of subsets of the cartesian product X × X with certain. properties which allow the large-scale structure of metric spaces and topological spaces to be defined. Used in the mathematical fields of geometry and topology. *

Coarse woody debris Coarse woody debris (CWD) or coarse woody habitat (CWH) refers to fallen dead trees and the remains of large branches on the ground in forests and in rivers or wetlands.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). C ...

(CWD), a term used for the dead trees left standing or fallen, including branches on the ground. * Styrian Coarse Haired Hound, a rough coated, hardy hunting dog used by Austrians and Slovenians to hunt Wild Boar. *

Granularity Granularity (also called graininess), the condition of existing in granules or grains, refers to the extent to which a material or system is composed of distinguishable pieces. It can either refer to the extent to which a larger entity is su ...

*''Coarse books'', a British series of humorous books on sports and pursuits by Michael Green or

Spike Hughes Patrick Cairns "Spike" Hughes (19 October 1908 – 2 February 1987) was a British musician, composer and arranger involved in the worlds of classical music and jazz. He has been called Britain's earliest jazz composer. Later in his career, he ...

, e.g.

The Art of Coarse Rugby Michael Green (born 2 January 1927 in Leicester, England, died 25 February 2018) was a British journalist and author of humorous books. He is best known for ''The Art of Coarse Rugby'', ''The Art of Coarse Acting'' and other books with similar ...

*''Coarse model'', a computationally fast, auxiliary model paired with a ''fine model'' in engineering modeling and optimization by space mapping.

See also