definition of
tartness

[1] #1 tartness n. [sour, sourness] the taste experience when vinegar or lemon juice is taken into the mouth. wn

[2] #2 tartness n. [acerbity] a sharp sour taste. wn

[3] #3 tartness n. [bitterness, acrimony, acerbity, jaundice, thorniness] a rough and bitter manner. wn