Definition of acidity in English:



mass noun
  • 1The level of acid in substances such as water, soil, or wine.

    ‘the increased acidity of rainfall’
    • ‘The pellets dissolve in water and the particles quickly disperse and neutralize soil acidity.’
    • ‘Tropical marine fish require specialist care, including precise levels of salt in the water, acidity and temperature to survive in a tank.’
    • ‘It may grow on sites with varying soil water availability and acidity, as well as at different above-ground light availabilities.’
    • ‘On a very basic level, vinegar or lemon juice add flavour to fish, so it seems natural to drink a wine with high acidity with seafood.’
    • ‘A blend of 90% Merlot and 10% Cabernet Sauvignon, this rich wine has good acidity and luscious raisin notes.’
    • ‘In the case of acid soils, burning decreases acidity, which starts to increase again during the planting period.’
    • ‘The acidity in this wine is mean, and there are unripe gooseberry flavours ready to give your taste buds a good kicking.’
    • ‘The skeletal remains were in poor condition, probably as the result of soil acidity and the shallow depth of many of the burials.’
    • ‘It does not follow that soil acidity bears any relation to wine acidity.’
    • ‘Pine needles tend to increase the acidity of the soil so they work best around acid-loving plants such as rhododendrons and blueberries.’
    • ‘Organic farming has many benefits to the environment since it prevents soil and water contamination by chemicals which reduce soil fertility and increase acidity.’
    • ‘In trying to link the acidity of rainfall to the acidity of soils and water it is essential to understand the role that soils play in releasing chemicals into solution as a result of natural weathering.’
    • ‘It's customary to add vinegar or lemon juice to fish, so it seems natural that this should be partnered by a wine high in acidity.’
    • ‘The water acidity there is so bad that it killed all life.’
    • ‘Wines from countries such as Italy or France tend to have higher acidity than new world wines because they are intended to be served with traditional foods.’
    • ‘Now there is a spate of plantings on higher ground, to achieve longer ripening - which produces wine with better acidity, more complexity and more minerality.’
    • ‘When acid rain falls in lakes and rivers, it increases the acidity of the water and can kill or seriously damage aquatic organisms.’
    • ‘In the 1960s and 1970s, fish stocks were depleted in a large number of Scandinavian lakes and this occurred at exactly the same time as an increase in the acidity of the lake water.’
    • ‘Wines with high acidity go best with heavy, fatty dishes.’
    • ‘In general, warmer New World countries, such as Australia, produce white wines of lower acidity.’
    1. 1.1 The level of acid in the gastric juices, typically when excessive and causing discomfort.
      ‘smoking does not affect gastric acidity’
      • ‘It is one of the best digestive herbs available, protecting and soothing the mucous membranes of the digestive tract, reducing excess acidity and easing nausea.’
      • ‘Days on the road together with bad food have worn down Nambiar's health and he now suffers from acidity and dyspepsia.’
      • ‘In addition, it may be worthwhile to measure gastric acidity in such patients and to consider replacement hydrochloric acid therapy at mealtime for those who are hypochlorhydric.’
      • ‘Urease liberated in these events seems to coat bacterial cell surfaces where its hydrolysis of urea to produce ammonia may provide a first line defense against gastric acidity.’
      • ‘Other infections are associated with normal or elevated gastric acidity, and may lead to duodenal ulcers.’
      • ‘It's an effective calming agent for the digestive tract, reducing acidity and helping indigestion and heartburn.’
      • ‘Excessive acidity and osmotic pressure in the gastric effluent can also retard emptying.’
      • ‘The problems with this concept include the role of food enzymes in digestion, their survival through gastric acidity and the notion of a body pool of enzymes.’
      • ‘Duodenal ulcers and gastric ulcers seem to develop along different pathways, involving high and low gastric acidity, respectively.’
      • ‘The betaine in this compound does not alter gastric acidity, but simply ‘delivers’ the hydrochloric acid.’
      • ‘They both reduce the acidity of stomach juices, which reduces irritation of the stomach, duodenum, and esophagus.’
      • ‘Pregnant women may be at higher risk of traveler's diarrhea than nonpregnant women because of lowered gastric acidity and increased gastrointestinal transit time.’
      • ‘They actually have a balancing effect in the digestive tract, for whilst stimulating the flow of digestive juices, they can counteract excess acidity in the stomach.’
      • ‘This may provide the advantage of enhanced delivery and absorption in the small intestines by protecting long-chain fatty acids from hydrolysis in gastric acidity.’
      • ‘A buffered pain reliever contains an antacid to reduce acidity in the stomach.’
      • ‘Fasting can often increase gastric acidity levels causing a burning feeling, a heaviness in the stomach, and a sour mouth.’
      • ‘It is often not the food we eat that causes acidity problems in the stomach, but an over production of acid that is secreted into the stomach following a meal.’
      • ‘Long-term use may result in side effects such as acidity, gastritis and even kidney failure.’
      • ‘This definitely is a bane as complaints of constipation, acidity, obesity, indigestion, etc., are rampant among the youth.’
      • ‘Therefore, future clinical solutions may also include pharmacological management of gastric acidity or esophageal reflux in at-risk individuals.’
      dyspepsia, hyperacidity, heartburn, stomach ache, a stomach ache, upset stomach, an upset stomach, stomach upset, a stomach upset, a gastric upset
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  • 2Bitterness or sharpness in a person's remarks or tone.

    ‘the cutting acidity in his voice’
    • ‘Marcus winced at the acidity in her tone.’
    • ‘There was only the slightest bit of acidity in his tone.’
    • ‘The gravel in the Brooklyn tones, the acidity in the wit and the raucous laugh remind us we are in the presence of one of the most controversial figures in literary history.’
    • ‘I had to try really, really hard to instil some acidity into my voice.’
    • ‘Even watching him now you are struck by the speed and smoothness of his delivery and the acidity of his remarks.’
    harshness, sharpness, roughness, abrasiveness, severity, acerbity, astringency, bitterness, tartness, edge, acrimony, virulence, sarcasm
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