silica gel

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sil·i·ca gel

a precipitated form of silicic acid, used for adsorption of various gases.

silica gel

[sil′ikə]
a coagulated form of hydrated silica, used as an absorbent of gases and as a dehydrating agent.

silica

silicon dioxide, a compound occurring naturally as quartz and in other forms. A common constituent of urinary calculi in agricultural animals, a rare occurrence in dogs.

silica calculi
see silica urolith.
silica gel
commonly used in the laboratory as a desiccant; has been used topically on dogs and cats for flea control.