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