v. jelled, jell·ing, jells v.intr. 1. To become firm or gelatinous; congeal. 2. To take shape or become clear; crystallize: A plan of action finally jelled in my mind. v.tr. 1. To cause to become firm or gelatinous: used pectin to jell the jam. 2. To cause to take shape; make clear and definite; crystallize. [Probably back-formation from JELLY.] |
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