junction-box

junction box

noun Electricity.
an enclosure that houses electric wires or cables that are joined together and protects the connections.

Origin:
1895–1900

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
junction box
 
n
an earthed enclosure within which wires or cables can be safely connected

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
junction box   (jŭngk'shən)  Pronunciation Key 
An enclosure within which electric circuits, such as the electrical wiring for different sections of a building, are connected to other circuits, such as outside power sources. Junction boxes are very common in telecommunications circuitry and are used to protect the connections and provide easy access to them.
The American Heritage® Science Dictionary
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