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