Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
spelter is a noun meaning "impure zinc containing about three percent lead and other impurities (especially in the form of ingots)". It carries one recorded sense.
impure zinc containing about three percent lead and other impurities (especially in the form of ingots)
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for spelter come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.