Definition of 3M from the Oxford Advanced Learner's Dictionary

 

3M

 
BrE
 
; NAmE
 
Minnesota Mining and Manufacturing Company
 
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a large US company best known for its Scotch tape, Scotchgard Fabric Protection and Post-it Notes. It actually produces about 50 000 products, including household items, electrical equipment and chemicals. The company was established in 1902.