Definition of "taster"

taster

/teɪstɚ/

noun
plural tasters
1. An object in which, or by which, food or drink is tasted, for example a dram cup
2. Someone who tastes something, especially food, wine etc., for quality.
  Quotations
  Thy tutor be thy taster, ere thou eat
  1693, Decimus Junius Juvenalis, John Dryden, transl., “[The Satires of Decimus Junius Juvenalis.] The Sixth Satyr”, in The Satires of Decimus Junius Juvenalis. Translated into English Verse. […] Together with the Satires of Aulus Persius Flaccus. […], London: Printed for Jacob Tonson […]
3. (zoology) A kind of zooid situated on the polyp-stem of certain Siphonophorae, resembling the feeding zooids, but destitute of mouths.
4. A sample of something bigger or grander intended for future use
5. A person who is, by genetic makeup, able to taste phenylthiocarbamide