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Definition of penetrator
penetrator
/ˈpɛnɪˌtɹeɪtɚ/
pen · e · tra · tor
Adverb:penetratively
•Plural:penetrators
•Adjective:penetrative
penetrator Lexical Profile
CEFR
C1
Grade
11
Tier
2
Usage
Rare
Syllables
4
penetrator Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
An engineered probe, dense rod, or specialized instrument designed to bore or drive deep into a solid surface, such as planetary soil, rock, or heavy shielding.
Example
"The spacecraft deployed a high-velocity surface penetrator to measure the thermal conductivity and seismic activity of the moon's crust."
2
A person or thing that pierces, enters, or forces a way into or through something, or someone who gains insight into a complex mystery or subject.
Example
"As a keen penetrator of obscure historical archives, the researcher uncovered several forgotten treaties."
Synonyms
View all synonyms for penetrator• Nearby Words
Word Origin & Etymology
Borrowed from Late Latin penetrator ('one who penetrates'), an agent noun derived from the Latin verb penetrare ('to put or get into, pierce, enter'), from penitus ('inner, deep').
Cite this Entry
Wordmom. (2026). Definition of Penetrator. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/penetrator