fucus

noun pl. fuci or fucuses

1. Obsolete
   1. a kind of paint for the face
   2. any paint or dye
2. any of a genus (Fucus, order Fucales) of brown algae with a flattened and forking plant body that bears swollen bladders

Origin: ModL < L, rock lichen; also, red or purple paint obtained from it < Gr phykos, rock lichen, rouge < Sem, as in Heb puch, cosmetic for the eyes