Webster's Revised Unabridged Dictionary · 1913

Ichthyocol

Ichthyocol , noun

[Latin ichthyocolla, Greek {not transcribed}; 'ichqy`s, -y`os, a fish + {not transcribed} glue: compare French ichthyocolle.]

Fish glue; isinglass; a glue prepared from the sounds of certain fishes.

Also: Ichthyocolla