Ar·i·el (âr??-?l)n. A satellite of Uranus.[After Ariel, a sylph that guards the heroine of The Rape of the Lock by Alexander Pope.]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.ariel (???r??l) n (Animals) an Arabian gazelle, Gazella arabica (or dama)[C19: from Arabic aryal]Ariel (???r??l) n (Celestial Objects) the smallest of the four large satellites of UranusCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Ar?i?el (???r i ?l) n. (in Shakespeare’s The Tempest) a spirit of the air who is required to use his magic to help Prospero. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.