isinglass
/ˈaɪzɪŋˌglɑːs/noun
mass noun
1- a kind of gelatin obtained from fish, especially sturgeon, and used in making jellies, glue, etc. and for fining real ale（从鱼尤其是鲟鱼中提取的用于制作果冻、胶水等及澄清桶中发酵鲜啤酒的）鱼胶。
1.1
- chiefly US mica or a similar material in thin transparent sheets〈主美〉云母薄片（或类似的透明薄片）。
词源
mid 16th cent.: alteration （by association with GLASS） of obsolete Dutch huysenblas 'sturgeon's bladder', from huysen 'sturgeon' + blas 'bladder'.