Pectin (noun)

A complex carbohydrate found in the cell walls of fruits and vegetables, used as a gelling agent in food preparation.

Origin:

From french pectine, from latin pecten, pectin- "comb".

Examples:

1. I use pectin to make homemade jam.
2. Pectin is a common ingredient in fruit preserves.
3. The recipe calls for a certain amount of pectin to thicken the mixture.
4. The pectin in the apples helped the pie filling set up properly.
5. Pectin is a natural thickener that is commonly used in the food industry.