Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
adulterating is an adjective meaning "making impure or corrupt by adding extraneous materials". It carries one recorded sense.
making impure or corrupt by adding extraneous materials
“the adulterating effect of extraneous materials”
Definitions, synonyms and semantic relations for adulterating come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.