Word Study
indusial
CIDE DICTIONARY
indusial, a. [See Indusium.].
Of, pertaining to, or containing, the petrified cases of the larvæ of certain insects. [1913 Webster]
Indusial limestone (Geol.), a fresh-water limestone, largely composed of the agglomerated cases of caddice worms, or larvæ of caddice flies (Phryganea ). It is found in Miocene strata of Auvergne, France, and some other localities.
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