weld
1. (Science: botany) An herb (reseda luteola) related to mignonette, growing in Europe, and to some extent in America; dyer’s broom; dyer’s rocket; dyer’s weed; wild woad. It is used by dyers to give a yellow colour.
Alternative forms: woald, wold, and would.
2. Colouring matter or dye extracted from this plant.
Origin: OE. Welde; akin to Scot. Wald, Prov. G. Waude, G. Wau, Dan. & Sw. Vau, D. Wouw.
Dictionary > Weld
You will also like...

Digestion and Absorption of Food
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

Dominance
This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

Ecosystem Succession
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..

Independent Assortment and Crossing Over
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

Temperature Regulation in Animals
This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..

The Human Nervous System
The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..