Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
taste-tester is a noun meaning "someone who samples food or drink for its quality". It carries one recorded sense.
someone who samples food or drink for its quality
Definitions, synonyms and semantic relations for taste-tester come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.