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impermeable

play
adjective im·per·me·able \(ˌ)im-ˈpər-mē-ə-bəl\

Simple Definition of impermeable

  • : not allowing something (such as a liquid) to pass through

Full Definition of impermeable

  1. :  not permitting passage (as of a fluid) through its substance; broadly :  impervious

im·per·me·abil·i·ty play \-ˌpər-mē-ə-ˈbi-lə-tē\ noun

Examples of impermeable

  1. an impermeable layer of rock

  2. a fabric impermeable to moisture



Origin of impermeable

Late Latin impermeabilis, from Latin in- + Late Latin permeabilis permeable


First Known Use: 1697


Medical Dictionary

impermeable

play
adjective im·per·me·able \(ˈ)im-ˈpər-mē-ə-bəl\

Medical Definition of impermeable

  1. :  not permitting passage (as of a fluid) through its substance <the plasma membrane of a red blood cell is relatively impermeable to sodium and calcium ions>

  2. im·per·me·abil·i·ty \(ˌ)im-ˌpər-mē-ə-ˈbil-ət-ē\play noun, plural im·per·me·abil·i·ties





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