English

Definition of capillary action noun from the Oxford Advanced Learner's Dictionary

 

capillary action

 noun
noun
BrE BrE//kəˈpɪləri ækʃn//
 
; NAmE NAmE//ˈkæpəleri ækʃn//
 
[uncountable] (specialist)
 
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the force that makes a liquid move up a narrow tube
See the Oxford Advanced American Dictionary entry: capillary action