Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
bottom-dweller is a noun meaning "a fish that lives and feeds on the bottom of a body of water". It carries one recorded sense.
a fish that lives and feeds on the bottom of a body of water
Definitions, synonyms and semantic relations for bottom-dweller come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.