Acidity

Etymology
From acidité:, from  aciditātem:, accusative singular of aciditas:, from acidus:. See acid.

Noun

 * 1) The quality or state of being acid
 * 2) The quality of sour; sourness; tartness; sharpness to the taste, as in the acidity of lemon juice.
 * Empty stomachs lead to acidity and leave a sour taste in the mouth.
 * 1)  Excessive acid quality, as in gastric secretions.

Antonyms

 * alkalinity

Thesaurus
acerbity; acescency; acid; acidness; acidulousness; acridity; acrimony; agent; alkali; alkalinity; alloisomer; animosity; anion; antacid; asperity; astringency; atom; base; bile; biochemical; bite; bitingness; bitter resentment; bitterness; bitterness of spirit; cation; causticity; causticness; chemical; chemical element; choler; chromoisomer; compound; copolymer; corrosiveness; cuttingness; dimer; dryness; edge; element; fierceness; gall; gnashing of teeth; greenness; grip; hard feelings; harshness; heartburning; heavy chemicals; high polymer; homopolymer; hydracid; hyperacidity; incisiveness; inorganic chemical; ion; isomer; keenness; macromolecule; metamer; molecule; monomer; mordacity; mordancy; neutralizer; nonacid; organic chemical; oxyacid; piercingness; piquancy; poignancy; point; polymer; pseudoisomer; pungency; radical; rancor; rankling; reagent; rigor; roughness; severity; sharpness; slow burn; soreness; sour; sourishness; sourness; spleen; stabbingness; sting; stridency; stringency; subacidity; sulfacid; tartishness; tartness; teeth; trenchancy; trimer; unripeness; unsweetness; vehemence; verjuice; vinegariness; vinegarishness; violence; virulence