Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
mv is a noun meaning "a unit of potential equal to one thousandth of a volt". It carries 2 recorded senses.
a unit of potential equal to one thousandth of a volt
a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol)
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 mv come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.