noun Pharmacology.

an intensely bitter, crystalline, water-soluble powder composed of the active principles of and obtained from aloe, used chiefly as a purgative.

Origin of aloin

First recorded in 1835–45; aloe + -ine2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for aloin

Historical Examples of aloin

British Dictionary definitions for aloin



a bitter crystalline compound derived from various species of aloe: used as a laxative and flavouring agent

Word Origin for aloin

C19: from aloe + -in
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

aloin in Medicine




A bitter, yellow crystalline compound obtained from aloe and used as a laxative.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.