#397. Sourness. -- N. sourness &c. adj.; acid, acidity, low pH; acetous fermentation, lactic fermentation.
vinegar, verjuice[obs], crab, alum; acetic acid, lactic acid.
V. be sour; sour, turn sour &c. adj.; set the teeth on edge.
render sour &c. adj.; acidify, acidulate.
Adj. sour; acid, acidulous, acidulated; tart, crabbed; acetous, acetose[obs]; acerb, acetic; sour as vinegar, sourish, acescent[obs], subacid[Chem]; styptic, hard, rough.
Phr. sour as a lemon.