viscautschin (au as ow)

[Formed from Eng. viscous, and Ger. kautschuk (=caoutchouc), with suff. -in.] Chemistry: The portion of crude viscin which is insoluble in alcohol and ether; specific gravity, 0.978. It is the substance to which bird-lime owes its adhesive properties, and is insoluble in alcohol and ether. Heated to 120°, it has the consistency of olive oil. -ene.] vis-çēne, subst . [Lat. visc (um)=bird-lime; suff. Chem.: A mobile, yellowish oil, obtained by the dry distillation of viscin. It has a specific gravity of 0.85, and distills almost completely at 226°.