/ ˈpɜːmiəbl; NAmE ˈpɜːrm-/ adjective
permeable (to sth) ( technical ) allowing a liquid or gas to pass through :
The skin of amphibians is permeable to water.
permeable rocks
OPP impermeable
► per·mea·bil·ity / ˌpɜːmiəˈbɪləti; NAmE ˌpɜːrm-/ noun [ U ]
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WORD ORIGIN
late Middle English : from Latin permeabilis , from permeare pass through, from per- through + meare pass, go.