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