Syllable division and stress derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
histologically is an adverb meaning "involving the use of histology or histological techniques". It carries one recorded sense.
involving the use of histology or histological techniques
“histologically identifiable structures”
Definitions, synonyms and semantic relations for histologically come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.