Definitions

1. noun

the refuse or dregs left after a process, such as sieving or filtering

“The brewery’s offscour was discarded and recycled.”

2. noun

the lowest or most worthless part of something

“The offscour of the company’s profits went towards charity.”

3. verb

to remove or separate unwanted or useless parts from something

“The farmer offscoured the wheat before grinding it into flour.”