/jel/ , n. , v. , gelled, gelling .
n.
1. Physical Chem. a semirigid colloidal dispersion of a solid with a liquid or gas, as jelly, glue, etc.
2. Theat. gelatin (def. 5).
3. Biochem. a semirigid polymer, as agarose, starch, cellulose acetate, or polyacrylamide, cast into slabs or cylinders for the electrophoretic separation of proteins and nucleic acids.
v.i.
4. to form or become a gel.
5. jell (def. 2).
[ 1895-1900; shortening of GELATIN ]