touchless
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touch·less
(tŭch′lĭs)adj.
Not requiring physical contact in order to be activated or performed: touchless soap dispensers.
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.
touchless
(ˈtʌtʃlɪs)adj
(Electronics) describing an electronic device which can be controlled by gesture or sound and does not require the user to touch a keypad, screen, etc
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014