Annotto \An*not"to\ ([a^]n*n[o^]t"t[-o]), Arnotto \Ar*not"to\
([aum]r*n[o^]t"t[-o]), n. [Perh. the native name.]
A red or yellowish-red dyeing material, prepared from the
pulp surrounding the seeds of a tree ({Bixa orellana})
belonging to the tropical regions of America. It is used for
coloring cheese, butter, etc. [Written also {Anatto},
{Anatta}, {Annatto}, {Annotta}, etc.]
[1913 Webster]