coarsen

Verb	1.	coarsen - make or become coarse or coarser; "coarsen the surface"; "Their minds coarsened" alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"
	2.	coarsen - make less subtle or refined; "coarsen one's ideals" alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

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