i 1 n 1 t 1 e 1 r 1 p 3 e 1 n 1 e 1 t 1 r 1 a 1 t 1 i 1 o 1 n 1
16 letters · 18 points in Scrabble
Meaning
noun the action of penetrating between or among
noun mutual penetration; diffusion of each through the other
originEtymology tree Proto-Indo-European *h₁én Proto-Indo-European *h₁entér Proto-Italic *n̥ter Latin inter Latin inter-bor. English inter- English penetration English interpenetration From inter- + penetration.
Etymology from Wiktionary, CC BY-SA 3.0