Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
leaf-miner is a noun meaning "any of various small moths or dipterous flies whose larvae burrow into and feed on leaf tissue especially of the family Gracilariidae". It carries one recorded sense.
any of various small moths or dipterous flies whose larvae burrow into and feed on leaf tissue especially of the family Gracilariidae
Definitions, synonyms and semantic relations for leaf-miner come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.