• WordNet 3.6
    • n dyestuff a usually soluble substance for staining or coloring e.g. fabrics or hair
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Webster's Revised Unabridged Dictionary
    • n Dyestuff A material used for dyeing.
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Century Dictionary and Cyclopedia
    • n dyestuff In com., any dyewood, lichen, powder, or dye-cake used in dyeing and staining. The most important dyestuffs are cochineal, madder, indigo, logwood, fustic, quercitron-bark, and the various preparations of aniline. Also called dyeware.
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In literature:

The products of the country I speak of are valuable woods, dyestuffs, gold, rubber, ivory, and cocoa.
"Roads of Destiny" by O. Henry
And this morning Amalgamated Dyestuffs went all to blazes.
"The Little Warrior" by P. G. Wodehouse
The spongy husk of the nuts is used as dyestuff.
"Among the Trees at Elmridge" by Ella Rodman Church
Besides, these dyestuffs contain nothing whatever injurious to the wool fiber.
"Scientific American Supplement, No. 530, February 27, 1886" by Various
The great commercial value of aniline is due to the readiness with which it yields, directly or indirectly, valuable dyestuffs.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1" by Various
On simply warming this mixture, the violet dyestuff is produced in about a minute.
"The Chemistry of Hat Manufacturing" by Watson Smith
It was rather hard on Lord PEEL, as the grandson of the great Sir ROBERT, to have to sponsor the Dyestuffs Bill.
"Punch, or the London Charivari, Volume 159, December 29, 1920" by Various
One dyestuff company here employs over five hundred chemists.
"Face to Face with Kaiserism" by James W. Gerard
Different fibers and fabrics attract dyestuffs with varying degrees of force.
"Textiles" by William H. Dooley
Four dyestuffs are used.
"Philippine Mats" by Hugo H. Miller