Definition of non-taster in US English:

non-taster

noun

  • A person with a genetic inability to taste a certain substance, especially (in experiments) the bitter chemical phenylthiocarbamide (PTC). Also: a person with an impaired sense of taste due an abnormally low number of taste buds.

Origin

1930s. From non- + taster.

Pronunciation

non-taster

/nɒnˈteɪstə/