Bluetooth

n. open specification for short-range wireless communication between various types of communication devices (such as cellular telephones, pagers, hand-held computers, and PCs)

Bluetooth is an industrial specification for wireless personal area networks (PANs). Bluetooth provides a way to connect and exchange information between devices such as mobile phones, laptops, PCs, printers, digital cameras, and video game consoles over a secure, globally unlicensed short-range radio frequency. The Bluetooth specifications are developed and licensed by the Bluetooth Special Interest Group.
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<protocol, standard> A specification for short-range radio links between mobile computers, mobile phones, digital cameras, and other portable devices.
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(2001-03-16)

this is a specification, developed by a consortium that includes IBM, Ericsson, Nokia, Intel, and Toshiba, for a radio system that allows electronic devices to communicate with each other over short distances without connecting cables; so there!