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[pen-i-truh-buh l] /ˈpɛn ɪ trə bəl/
capable of being penetrated.
Origin of penetrable
late Middle English
1375-1425; late Middle English < Latin penetrābilis, equivalent to penetrā(re) to penetrate + -bilis -ble
Related forms
penetrability, penetrableness, noun
penetrably, adverb
nonpenetrability, noun
nonpenetrable, adjective
nonpenetrably, adverb
self-penetrability, noun
transpenetrable, adjective
unpenetrable, adjective
unpenetrably, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for penetrable
  • It is generally penetrable only through cuts or tiny abrasions.
  • The interior hull is an open cavity penetrable only from below.
  • The more penetrable the screen is, the shorter the distance to the point of maximum wind velocity and the lower the protection.
  • Occlusion not penetrable by the infusion guide wire.
  • Residential buildings are typically constructed of wood and other materials easily penetrable by radio waves.
  • Larger armor panels may be slightly more penetrable.
Word Origin and History for penetrable

early 15c., "penetrating," from Latin penetrabilis "penetrable, vulnerable," from penetrare (see penetrate). Meaning "capable of being penetrated" is attested from 1530s; figurative use by 1590s. Related: Penetrability.

Online Etymology Dictionary, © 2010 Douglas Harper
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