Achiote n. : Seeds of the annotto tree; also, the coloring matter, annotto.

Example:
Where to buy annatto (or Achiote) seeds in London?

Taxonomy
Bixa orellana, fruits, unranked, achiote paste, free encyclopedia, annatto, the seeds, seed pod, tree, the origin, crops, shrub, main ingredient, search, blossom, Kingdom, Family, Genus.

Defination from the web: