Third-person singular simple present indicative form of penetrate.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "penetrates" in a sentence
"Your word penetrates the culture, race, time, and language."
"Every time alien protein penetrates by effraction, the organism suffers and becomes resistant."
"At one point Malebranche discusses how the look of an impassioned man "penetrates" even people who hardly know him (LO 113), and at another a young maidservant who, on seeing someone bled through the foot, took to bed with a pain in her foot for several days (LO 114)."