cordless

[ kawrd-lis ]
/ ˈkɔrd lɪs /

adjective

lacking a cord.
(of an electrical appliance) requiring no wire leading to an external source of electricity because of a self-contained, often rechargeable, power supply; battery-powered.

Origin of cordless

First recorded in 1905–10; cord + -less
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for cordless

cordless

/ (ˈkɔːdlɪs) /

adjective

(of an electrical device) operated by an internal battery so that no connection to mains supply or other apparatus is needed
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