| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024pec•tin /ˈpɛktɪn/USA pronunciation n. [uncountable]- Biochemistrya white substance present in ripe fruits, used to thicken fruit jellies.
pec•tic/ˈpɛktɪk/USA pronunciation pec•tin•ous, adj. WordReference Random House Unabridged Dictionary of American English © 2024pec•tin (pek′tin),USA pronunciation n. [Biochem.]- Biochemistrya 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.
- Greek pēkt(ós) fixed, congealed (see pectic) + -in2
- 1830–40;
Collins Concise English Dictionary © HarperCollins Publishers:: pectin /ˈpɛktɪn/ n - any of the acidic hemicelluloses that occur in ripe fruit and vegetables: used in the manufacture of jams because of their ability to solidify to a gel when heated in a sugar solution (may be referred to on food labels as E440(a))
Etymology: 19th Century: from Greek pēktos congealed, from pegnuein to setˈpectic, ˈpectinous adj |