[ am-uh-loh-pek-tin ]
/ ˌæm ə loʊˈpɛk tɪn /


the insoluble or gel component of starch that forms a paste with water, but does not solidify, and that turns red in iodine.
Compare amylose.

Origin of amylopectin

First recorded in 1900–05; amylo- + pectin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for amylopectin

/ (ˌæmɪləʊˈpɛktɪn) /


the major component of starch (about 80 per cent), consisting of branched chains of glucose units. It is insoluble and gives a red-brown colour with iodineCompare amylose
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for amylopectin

[ ăm′ə-lō-pĕktĭn ]


The highly branched, almost insoluble polysaccaride that is a constituent of starch.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.