Definition of black stock
: the dark-colored material that in papermaking is discharged from a digester at the end of an alkaline cook of wood chips and contains the fiber, the alkali, and about half the weight of the wood in solution
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!
Seen and Heard
What made you want to look up black stock? Please tell us where you read or heard it (including the quote, if possible).