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Definition of: gel
Our photo definition of gel 
(jel) noun Chem.
A colloidal dispersion of a solid in a liquid which may range from the nearly liquid to the solid state, but is typically a semisolid and of a jellylike consistency, as gelatin, mucilage, uncooked egg white, etc.
—v.i. gelled, gel·ling To change into a gel; jellify. [Short for GELATIN]
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