from The Century Dictionary.
- noun See
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A substance, C16H14O5, extracted from brazilwood as a yellow crystalline powder which is white when pure. It is colored intensely red by alkalies on exposure to the air, being oxidized to bra*sil"e*in (�), C16H12O5, to which brazilwood owes its dyeing properties.
Sorry, no etymologies found.
Sibukao contains much tannin and gallic acid, and a peculiar substance which distinguishes it from logwood, _brasilin_ (C_22_H_20_O_7_), which gives a red color to alkaline solutions instead of blue or purple.