Main Entry: isin·glass
Pronunciation: 'I-z&n-"glas, 'I-zi[ng]-
Function: noun
Etymology: probably by folk etymology from obsolete Dutch huizenblas, from Middle Dutch huusblase, from huus sturgeon + blase bladder
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 http://m-w.com/cgi-bin/dictionary?book=Dictionary&va=isinglass
Isinglass
Isinglass is a very pure transparent gelatin obtained from the swimbladder of certain fish, especially sturgeon. It was used for making jellies and especially as a fining agent to clarify wine. It has been replaced by animal gelatin. http://www.foodreference.com/html/fisinglass.html