Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
cd-rom is a noun meaning "a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user". It carries one recorded sense.
a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user
Definitions, synonyms and semantic relations for cd-rom come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.