Crossword clue: the faculty of distinguishing sweet, sour, bitter, and salty properties in the mouth

The most common answer is gustation (9 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

gustation 9 letters wn-def

the faculty of distinguishing sweet, sour, bitter, and salty properties in the mouth