1) Of waste 2) Synonym of clastic 
• (a.) Pertaining to, or composed of, detritus.
Pertaining to or formed from detritus; said esp. of rocks, minerals, and sediments. The term may indicate a source outside the depositional basin or a source within it.
A word used in reference to sediments or sedimentary rocks that are composed of particles that were
De·tri'tal adjective (Geol.) Pertaining to, or composed of, detritus. 
1 Pertaining to detritus. 2 A rock formed from detritus.
detrital Of or pertaining to detritus; consisting of particles worn away from some solid body.
synonym of clastic.