The word 'Meloncus' is spelled phonetically as /mɛlɒŋkəs/. The pronunciation of this word is divided into three syllables: 'mel', 'on' and 'cus'. The first syllable, 'mel', is pronounced as 'mehl', the second syllable 'on' is pronounced as 'on', and the final syllable 'cus' is pronounced as 'kuhs'. The word 'Meloncus' is said to be a rare word, and it refers to a form of epilepsy. This word is often spelled and pronounced incorrectly due to its rarity and complexity.