Definition

Noun A substance, typically soluble, used to impart color to materials such as textiles, hair, or other substrates. It is a coloring agent or pigment.

Usage and Examples

• The factory specializes in producing synthetic dyestuff for the textile industry.
• Natural dyestuffs, like those from indigo plants, have been used for centuries.
• The chemical composition of the dyestuff determines its colorfastness and how it bonds to the fabric.

Advanced Usage

• Technical/Industrial Context: The term is often used in manufacturing, chemistry, and industrial contexts to distinguish the raw coloring material from the final dyed product or the process of dyeing.
  • The research focuses on developing eco-friendly dyestuffs with minimal environmental impact.

Variants and Related Words

• Dye (n.): A more common synonym for dyestuff. While often interchangeable, "dye" can also refer to the coloring process or the resulting color.
• Colorant (n.): A broader term for any substance used to give color.
• Pigment (n.): Often an insoluble coloring substance, contrasted with soluble dyestuffs. Pigments are typically suspended in a medium (like paint) rather than dissolved.

Synonyms

Coloring agent, colorant, tint, stain.

Notes on Meaning

• The core meaning is a substance used for coloring. The "usually soluble" part of the definition distinguishes it from pigments, which are generally insoluble. Its primary application is in coloring materials, not for writing or drawing (like ink).

Noun

1. a usually soluble substance for staining or coloring e.g. fabrics or hair