— pectinaceous /pek'teuh nay"sheuhs/ , pectinous , adj.
/pek"tin/ , n. Biochem.
a white, amorphous, colloidal carbohydrate of high molecular weight occurring in ripe fruits, esp. in apples, currants, etc., and used in fruit jellies, pharmaceuticals, and cosmetics for its thickening and emulsifying properties and its ability to solidify to a gel.
[ 1830-40; pekt ( ós ) fixed, congealed (see PECTIC) + -IN 2 ]