American Heritage Dictionary
(3)
Century Dictionary
(3)
GNU Webster's 1913
(2)
WordNet
(2)
Elsewhere on the web
In this, I do not think we should try to equate nationalism with racism, but to recognize that they overlap and interpenetrate each other.— planet x-berg.de
You know, people are going to make jokes whether we like it or not … it just depends on how people interpenetrate them themselves.— The Velvet Hot Tub | Freshest Stories
So, you're not actually editing the geometry of the physical objects, but you can take them, rotate them, combine them in any way that you want to, interpenetrate them or position them -- things like that.— GameSetWatch
But the very essence of our existence here is that the material and spiritual worlds interpenetrate, or rather that our little planet forms part of a boundless universe teeming with life and intelligence, yet lying in the hollow of God's hand.— True Irish Ghost Stories
If such a man has none, he is to be pitied; but he to whom one has been given, and in whose soul heaven and earth, the invisible and the visible, interpenetrate, and thus for the first time create a true and worthy heaven, fights to the last drop of his blood again to transmit the precious possession undiminished to posterity Thus has it been from time immemorial, though it has not been expressed from time immemorial with this generality and with this clearness.— The German Classics of the Nineteenth and Twentieth Centuries, Volume 05 Masterpieces of German Literature Translated into English

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