cerasin

from The Century Dictionary.

• noun A name of two coal-tar colors, otherwise known as fast red A and Bordeaux B.
• noun A compound, C₇₀H₁₃₈O₁₂N₂, obtained in small amounts by warming cows' brains with a solution of barium hydroxid. It is neutral and resembles cerebrin in its properties.
• noun A kind of gum which exudes from cherry-trees and plum-trees. It is distinguished from gum arabic by being insoluble in cold water.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A white amorphous substance, the insoluble part of cherry gum; -- called also meta-arabinic acid.
• noun (Chem.) A gummy mucilaginous substance; -- called also bassorin, tragacanthin, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry A white amorphous substance, the insoluble part of cherry gum; meta-arabinic acid.
• noun chemistry A gummy mucilaginous substance; bassorin or tragacanthin.