Alternative form of Imma

Any treatment of an ore used to concentrate its valuable constituents (minerals) into products (concentrate) of smaller bulk, and simultaneously to collect the worthless material (gangue) into disc...

(soil science) The downward movement of clay in a soil profile

To make a rustling sound while moving. / (transitive) To flourish with a swishing sound. / (transitive, slang, dated) To flog; to lash.