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