The Collaborative International Dictionary
brezilin
Brazilin \Braz"i*lin\, n. [Cf. F. br['e]siline. See Brazil.] (Chem.) A substance contained in both Brazil wood and Sapan wood, from which it is extracted as a yellow crystalline substance which is white when pure. It is colored intensely red by alkalies. [Written also brezilin.]
Wiktionary
brezilin
n. (alternative form of brazilin English)