"Blastematic" is not a commonly used word, but its spelling and pronunciation can be explained through the International Phonetic Alphabet (IPA). The word is spelled as /blæstəmətɪk/, with stress placed on the second syllable. The first syllable is pronounced as "blast" with a short "a" sound and the second syllable is pronounced as "uh-mat-ik". The suffix "-matic" indicates that the word is related to machines or technology, possibly implying something related to explosions or blasting power.