- another name for annatto
C17: via French from Tupi urucú
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Examples from the Web for roucou
Roucou is planted of a Kernel much after the same manner as the Cocao-Tree.The Natural History of Chocolate</p>
D. de Quelus
This was a famous plant—Bixa orellana Roucou; and that pulp was the well-known annotto dye of commerce.
They paint themselves with the roucou, sweetly perfumed with hayawa or accaiari.Wanderings in South America