to make or become coarse
tr. & intr.v.coars·ened, coars·en·ing, coars·ens
To make or become coarse.
(third-person singular simple present coarsens, present participle coarsening, simple past and past participle coarsened)
- To make more coarse.
- Because the wool is poor quality it will coarsen the fabric.
- corneas, earcons