Is`i*do"ri*an (?), a. Pertaining, or ascribed, to Isidore; as, the
Isidorian decretals, a spurious collection of decretals published in
the ninth century.
I"sin*glass (?), n. [Prob. corrupted fr. D. huizenblas (akin to G.
hausenblase), lit., bladder of the huso, or large sturgeon; huizen
sturgeon + blas bladder. Cf. Bladder, Blast a gust of wind.]
1. A semitransparent, whitish, and very pure form of gelatin, chiefly
prepared from the sounds or air bladders of various species of
sturgeons (as the Acipenser huso) found in the rivers of Western
Russia. It used for making jellies, as a clarifier, etc. Cheaper forms
of gelatin are not unfrequently so called. Called also fish glue.