'pectin' definitions:

Definition of 'pectin'

noun

Any of various water-soluble colloidal carbohydrates that occur in ripe fruit and vegetables; used in making fruit jellies and jams

From: GCIDE

pectin \pec"tin\ (p[e^]k"t[i^]), n. [Gr. phkto`s curdled, congealed, from phgny`nai to make fast or stiff: cf. F. pectine.] (Chem.) One of a series of carbohydrates, commonly called {vegetable jelly}, found very widely distributed in the vegetable kingdom, especially in ripe fleshy fruits, as apples, cranberries, etc. It is extracted as variously colored, translucent substances, which are soluble in hot water but become viscous on cooling. It is commonly used in making fruit jelllies. [1913 Webster]