1) A commodity with a wide range of uses, including making jellies, clarifying liquors, manufacturing glue. It is a firm whitish substance obtained from the air bladder of certain fish such as the sturgeon.

1528 Item one bag of ising-glass, Chevet

1693 isinglass 2s, Selby

1718 Isinglass, 12 oz, Kiveton.

dates 1528 1693 1718

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