hamza definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a mark used in Arabic writing to indicate a glottal stop and usually represented in English transliteration by an apostrophe
hamza definition by American Heritage Dictionary
A sign in Arabic orthography used to represent the sound of a glottal stop, transliterated in English as an apostrophe.
Origin: Arabic, from hamaza, to urge on, goad; see hmz in Semitic roots.