Definition of duct tape noun from the Oxford Advanced Learner's Dictionary

 

duct tape

 noun
noun
BrE
 
; NAmE
 
[uncountable](North American English)
 
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very strong cloth tape that is sticky on one side, often used for repairing things or covering holes in pipes Word Origin 1970s: originally used for repairing leaks in ducted ventilation and heating systems.
See the Oxford Advanced American Dictionary entry: duct tape