Callotases is a plural noun used to describe enzymes that break down a type of complex sugar called callotetraose. The spelling of this word can be broken down using the International Phonetic Alphabet (IPA) as kæləʊteɪsi:z. The first syllable is pronounced with the short 'a' sound as in 'cat', followed by a long 'o' sound. The second syllable has a schwa sound followed by a 't' sound, and the final syllable has a long 'i' sound followed by a 'z' sound.