Main Entry: isin·glass

Pronunciation: \ˈī-z^ən-ˌglas, ˈī-ziŋ-\

Function: noun

Etymology: probably by folk etymology from obsolete Dutch huizenblas, from Middle Dutch huusblase, from huus sturgeon + blase bladder

Date: 1535

1 : a semitransparent whitish very pure gelatin prepared from the air bladders of fishes (as sturgeons) and used especially as a clarifying agent and in jellies and glue
2 : mica especially when in thin transparent sheets; especially : muscovite 2