Crab apple's quality

• Pungency
• The taste experience when vinegar or lemon juice is taken into the mouth
• Vinegary quality
• A sharp sour taste
• Feature of Granny Smiths
• Sourball quality
• Feature of Granny Smith apples

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Tartness \Tart"ness\, n. The quality or state of being tart. Syn: Acrimony; sourness; keenness; poignancy; severity; asperity; acerbity; harshness. See Acrimony .

WordNet Word definitions in WordNet
n. the taste experience when vinegar or lemon juice is taken into the mouth [syn: sour , sourness ] a sharp sour taste [syn: acerbity ]