gel: Meaning and Definition of

gel

1. a semirigid colloidal dispersion of a solid with a liquid or gas, as jelly, glue, etc.
2. gelatin (def. 5).
3. a semirigid polymer, as agarose, starch, cellulose acetate, or polyacrylamide, cast into slabs or cylinders for the electrophoretic separation of proteins and nucleic acids.

1. to form or become a gel.
2. jell (def. 2).