From Longman Dictionary of Contemporary EnglishBluetoothBlue‧tooth /ˈbluːtuːθ/ noun [uncountable] trademark a system that allows you to connect computer equipment, such as a keyboard or printer, to a computer that is near it by using radio waves instead of wires. You can also use the system to connect a mobile phone to a computer without using wires.From Longman Business DictionaryBluetoothBlue‧tooth /ˈbluːtuːθ/ noun [uncountable] trademarkTELECOMMUNICATIONS Bluetooth technology makes it possible for information to be sent between mobile phones, computers, and other electronic equipment without using wiresBluetooth technology can be found in nearly every electronic product you can think of, from wireless game controllers to hands-free headsets.