Cudbear, violet, red, or bluish dyestuff, considered similar to orchil and used in colouring pharmaceuticals; also any colour obtained from this dye.
Your children are not alone in loving colouring and drawing, as the enormous boom in colouring in titles for both adults and children shows.
Lawsonia inermis (Laali) is a very popular natural dye used in colouring fingers, hands, nails and hair (in northern part of Nigeria).
A reappraisal of crystal structure, optical properties and technological behaviour of black spinels in the Co Cr Fe Mn system was carried out to define the best compositions and disclose the role of crystal chemistry in colouring performance and pigment-glaze interactions.
We are interested in colouring a graph G= V, E) together with an integral weight or demand vector x=(xv: v∈V) in such a way that xv colours are assigned to each node v, adjacent nodes are coloured with disjoint sets of colours, and we use as few colours as possible.
Birds have always been noted for sexual dichromatism (differences in colouring between males and females), with males characteristically being the more brightly coloured.
