Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
corrosion-resistant is an adjective meaning "impervious to corrosion". It carries one recorded sense.
impervious to corrosion
“he was a great believer in the corrosion-resistant qualities of cast iron”
Definitions, synonyms and semantic relations for corrosion-resistant come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.