UNDULATION Meaning of UNDULATION in English transcription, транскрипция: [ ˌʌndjuˈleɪʃən ]n. 1 a wavy motion or form, a gentle rise and fall. 2 each wave of this. 3 a set of wavy lines. English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012