Definify.com
Webster 1913 Edition
Pastel
1.
A crayon made of a paste composed of a color ground with gum water.
[Sometimes incorrectly written
“Charming heads in pastel.” pastil
.] W. Black.
2.
(Bot.)
A plant affording a blue dye; the woad (
Isatis tinctoria
); also, the dye itself. Webster 1828 Edition
Pastel
PAS'TEL
,Noun.
1.
A coloring substance.