plural penetrations
1
: the act of going through or into something : the act of penetrating something
Cuts in the skin could permit the penetration of bacteria into the body.
the penetration of the CIA by foreign agents
the penetration of the U.S. market by a foreign company
multiple penetrations into enemy territory
2
formal
: an ability to understand things clearly and fully
a writer who analyzes the underlying causes of the recession with great penetration
Cite this Entry
“Penetration.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/penetration. Accessed 23 Jun. 2026.
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