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1. The sacred dress of Muslim pilgrims, consisting of two lengths of white cotton, one wrapped around the loins, the other thrown over the left shoulder.
2. The state of ritual purity of Muslims in wearing this dress for pilgrimage or for other acts of worship, especially the daily worship.
[Arabic 'iḥrām, prohibition, ihram, infinitive of 'aḥrama, to enter the state of ihram, from ḥarama, to prohibit; see x̣rm in Semitic roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Islam) the customary white robes worn by Muslim pilgrims to Mecca, symbolizing a sacred or consecrated state
[C18: from Arabic ihrām, from harama he forbade]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014