Definition of permeable adjective from the Oxford Advanced Learner's Dictionary

 

permeable

 adjective
adjective
BrE BrE//ˈpɜːmiəbl//
 
; NAmE NAmE//ˈpɜːrmiəbl//
 
 
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permeable (to something) (specialist) allowing a liquid or gas to pass through The skin of amphibians is permeable to water. permeable rocks gas-permeable contact lens opposite impermeable Word Origin late Middle English: from Latin permeabilis, from permeare ‘pass through’, from per- ‘through’ + meare ‘pass, go’.
See the Oxford Advanced American Dictionary entry: permeable

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