Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having a taste characteristic of that produced by acids; sharp, tart, or tangy.
  • adjective Made acid or rancid by fermentation.
  • adjective Having the characteristics of fermentation or rancidity; tasting or smelling of decay.
  • adjective Bad-tempered and morose; peevish.
  • adjective Displeased with something one formerly admired or liked; disenchanted.
  • adjective Not measuring up to the expected or usual ability or quality; bad.
  • adjective Not having the correct or properly produced pitch.
  • adjective Of or relating to excessively acid soil that is damaging to crops.
  • adjective Containing excessive levels of sulfur compounds, carbon dioxide, or both. Used of oil and natural gas.
  • adjective Containing excessive levels of peroxides. Used of gasoline.
  • noun The sensation of sour taste, one of the four primary tastes.
  • noun Something sour.
  • noun A mixed drink made especially with whiskey, lemon or lime juice, sugar, and sometimes soda water.
  • transitive & intransitive verb To make or become sour.
  • transitive & intransitive verb To make or become disagreeable, disillusioned, or disenchanted.

from The Century Dictionary.

  • Sourly; bitterly.
  • noun In drenching or puering skins, the old liquor which has become sour or turned.
  • To become sour; become acid; acquire the quality of tartness or pungency to the taste, as by fermentation: as, cider sours rapidly in the rays of the sun.
  • To become peevish, crabbed, or harsh in temper.
  • To become harsh, wet, cold, or unkindly to crops: said of soil.
  • To make sour; make acid; cause to have a sharp taste, especially by fermentation.
  • To make harsh, crabbed, morose, or bitter in temper; make cross or discontented; embitter; prejudice.
  • To make harsh, wet, cold, or unkindly to crops: said of soil.
  • In bleaching, etc., to treat with a dilute acid.
  • To macerate and render fit for plaster or mortar, as lime.
  • Having an acid taste; sharp to the taste; tart; acid; specifically, acid in consequence of fermentation; fermented, and thus spoiled: as, sour bread; sour milk.
  • Harsh of temper; crabbed; peevish; austere; morose: as, a man of a sour temper.
  • Afflictive; hard to bear; bitter; disagreeable to the feelings; distasteful in any manner.
  • Expressing discontent, displeasure, or peevishness: as, a sour word.
  • Cold; wet; harsh; unkindly to crops: said of soil.
  • Coarse: said of grass.
  • Synonyms Acetous, acetose.
  • 2 and
  • Cross, testy, waspish, snarling, cynical.
  • noun Something sour or acid; something bitter or disagreeable.
  • noun Dirt; filth.
  • noun An acid punch.
  • noun In bleaching and dyeing:
  • noun A bath of buttermilk or sour milk, or of soured bran or rye-flour, used by primitive bleachers.
  • noun A weak solution of sulphuric or hydrochloric acid, used for various purposes. Compare souring, 5.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A sour or acid substance; whatever produces a painful effect.
  • transitive verb To cause to become sour; to cause to turn from sweet to sour.
  • transitive verb To make cold and unproductive, as soil.
  • transitive verb To make unhappy, uneasy, or less agreeable.
  • transitive verb To cause or permit to become harsh or unkindly.
  • transitive verb To macerate, and render fit for plaster or mortar.
  • intransitive verb To become sour; to turn from sweet to sour

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English, from Old English sūr.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English sour, from Old English sūr ("sour"), from Proto-Germanic *sūraz (“sour”), from Proto-Indo-European *sūr- (“sour (milk)”). Cognate with West Frisian soer, Dutch zuur ("sour"), Low German suur, German sauer ("sour"), Danish and Swedish sur ("sour"), Icelandic súr ("sour, bitter").

Examples

  • She tried to shake him off, but his fingers tightened and she sat still, her expression sour as he began to pour healing energy into her.

    Crimson Wind

  • “Uh-huh,” Kaitlynn replied, her expression sour as she looked Ariana up and down.

    Sweet Deceit

  • “Uh-huh,” Kaitlynn replied, her expression sour as she looked Ariana up and down.

    Sweet Deceit

  • Ex surveyed the circle of dirt, his expression sour.

    Vicious Grace

  • Ex surveyed the circle of dirt, his expression sour.

    Vicious Grace

  • Amanda went to stand opposite Berry on the other side of the bed, her expression sour.

    Tough Customer

  • Ex surveyed the circle of dirt, his expression sour.

    Vicious Grace

  • Anonymous -- sorry if I struck a nerve, but in my experience Chinese American restaurant (I emphasize restaurant) sweet and sour is pretty heavy.

    So You Think You've Had Sweet And Sour?: Thai Sweet And Sour With Pork

  • Sift about one-third of flour mixture over chocolate mixture and whisk until combined; whisk in sour cream until combined, then sift remaining flour mixture over and whisk until batter is homogenous and thick.

    Archive 2009-02-01

  • Sift about one-third of flour mixture over chocolate mixture and whisk until combined; whisk in sour cream until combined, then sift remaining flour mixture over and whisk until batter is homogenous and thick.

    Mint Chocolate Cupcakes For John

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