attritus
noun
at·tri·tus
ə‧ˈtrītəs,
a‧ˈ-,
-ītəs
plural -es
: matter pulverized or finely divided by attrition
specifically : one of the constituents of durain consisting of a macerated plant debris including leaves, bark, cuticle, spore and pollen extines, resins, and mineral matter
Word History
Etymology
New Latin, from Latin, act of rubbing against, rubbing away, from attritus past participle of atterere to rub against, rub away
First Known Use
1818, in the meaning defined above