peneplane peneplanation • peneseismic · · · Info · Definitions · Synonyms · Characters · · peneplane · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements. Synonyms: peneplain. · · Noun Definition 1 Synonyms · · · peneplain · · Synonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E p latin small letter p U+0070