/uy"zeuhn glas', -glahs', uy"zing-/ , n.
1. a pure, transparent or translucent form of gelatin, obtained from the air bladders of certain fish, esp. the sturgeon: used in glue and jellies and as a clarifying agent.
2. mica, esp. in thin, translucent sheets.
[ 1535-45; huysenblase (with GLASS for blase by folk etym.), lit., sturgeon bladder; c. G Hausenblase ]