View your list of saved words. (You can log in using Facebook.)
Definition of PECTIC SUBSTANCE
: any of a group of complex colloidal carbohydrate derivatives of plant origin that contain a large proportion of units derived from galacturonic acid and include protopectins, pectins, pectinic acids, and pectic acids
Seen & Heard
What made you want to look up pectic substance? Please tell us where you read or heard it (including the quote, if possible).