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