The word 'nodulations' is spelled with three syllables: /nɒd.jʊˈleɪ.ʃənz/. The first syllable contains the vowel sound, 'o', pronounced as /ɒ/. The second syllable has the diphthong, 'yu', pronounced as /jʊ/. The third syllable contains the vowel sound, 'a', pronounced as /ˈleɪ/. The word is a plural form of 'nodulation' which means a small nodular formation. The spelling of 'nodulations' can be tricky due to the variation in the pronunciation of each syllable, but with the help of IPA phonetic transcription, it can be pronounced with ease.