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