Definition of attritus
: 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
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of attritus
New Latin, from Latin, act of rubbing against, rubbing away, from attritus past participle of atterere to rub against, rub away — more at attrite
First Known Use: 1818
Seen and Heard
What made you want to look up attritus? Please tell us where you read or heard it (including the quote, if possible).