Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
mutational is an adjective meaning "of or relating to or resulting from mutation". It carries one recorded sense.
of or relating to or resulting from mutation
Definitions, synonyms and semantic relations for mutational come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.