• (n.) A white amorphous substance, the insoluble part of cherry gum; -- called also meta-arabinic acid. • (n.) A gummy mucilaginous substance; -- called also bassorin, tragacanthin, etc.
Cer'a·sin noun (Chemistry) A white amorphous substance, the insoluble part of cherry gum; -- called also meta-arabinic acid . 2. (Chemistry) A gummy mucilaginous substance; -- called also bassorin , tragacanthin , etc. 
Type: Term Pronunciation: ser′ă-sin Synonyms: kerasin