acidityn.

Brit.

/əˈsɪdᵻti/, U.S.

/əˈsɪdᵻdi/,

/æˈsɪdᵻdi/

Origin: Either (i) a borrowing from French. Or (ii) a borrowing from Latin. Etymons: French acidité; Latin aciditat-, aciditas.

Etymology: < French acidité (1545 in Middle French) or its etymon post-classical Latin aciditat-, aciditas acidic substance (5th cent.) < classical Latin acidus sour (see acid adj.) + -tās (see -ty suffix¹; compare -ity suffix). Compare slightly later acid adj.

a. The quality or state of being acid, in taste or in chemical properties (or both); sourness, sharpness to the taste. Also: the degree to which a substance, medium, etc., is acid (acid adj. 2a), esp. (Chemistry) as measured by hydrogen-ion concentration or pH. Also: an instance of acid properties, an acid substance. Cf. acid adj. 1a, 2a.

ΘΚΠ

the world > physical sensation > taste and flavour > sourness or acidity > [noun]

sharpnessc1000

sournessc1050

sourheada1400

eagerness?a1425

verdure1508

tartness1530

acetosity1599

acidity1615

sourfulness1617

tetricity1623

tetritude1656

tartarousness1657

acidness1660

sourishness1670

fieriness1675

acescency1756

1615 H. Crooke Μικροκοσμογραϕια iii. ii. 127 An vnprofitable part..it belcheth out into the stomacke, by the short vessell to stirre vp appetite by his aciditie and sharpnes.

1653 J. French Art Distillation (ed. 2) v. 157 It is yet further to be prepared, and that is by giving it a greater acidity.

1669 J. Worlidge Systema Agriculturæ i. 9 The heat of the fire evaporating, and consuming the Acidity of the Earth.

1738 J. Hoofnail New Pract. Improvem. Exper. Colours 15 The strong Acidity that is contained in the Verdigrease is so corrosive.

1787 G. Winter New Syst. Husbandry 333 It did not effervesce in, nor blunt the acidity of vinegar.

1800 S. Brown Treat. Yellow Fever 38 Septon, in combination with oxygene, the principle of acidity, forms the gaseous oxyd of septon (dephlogisticated nitrous air).

1863 D. G. Mitchell My Farm of Edgewood 143 I count upon its brilliant colouring, and its piquant acidity, in the first days of August.

1892 Photogr. Ann. II. 77 He gives a table showing the acidity, alkalinity or neutrality of the chemicals commonly used in photography.

1917 R. Marloth Flora S. Afr.: Dict. Common Names 21 The fruit contains a whitish acidulous powder, but not any tartar, the acidity being due to citric acid.

1949 W. C. Allee et al. Princ. Animal Ecol. xi. 173/2 Pools and streams with acidities as high as pH 1.8.

1961 J. Cheever in New Yorker 11 Nov. 53/2 Leaves were burning somewhere and the smoke smelled, for all its ammoniac acidity, of beginnings.

1975 P. V. Price Taste of Wine iv. 44/3 Generally, you notice acidity as a slightly sharp effect on the parts of the mouth with which the wine first makes contact.

1984 A. C. Duxbury & A. Duxbury Introd. World's Oceans v. 162 The concentration of hydrogen ions (H⁺) in the seawater controls the acidity or alkalinity.

2004 Independent 12 May (Review section) 9/1 Trying to build bioreactors that can work under highly corrosive conditions of high temperatures and pressures, high acidity or high salt concentration is a challenge.

b. A condition (supposedly) characterized by an increased amount of acid within a part or whole of the body (in later use, esp. the stomach); an instance of this.

ΚΠ

1682 N. Grew Of Mixture i. vi. v. §3 in Anat. Plants 236 The very Cause of the said Viscousness of Phlegm, is chiefly some great Acidity in the Blood.

1732 J. Arbuthnot Pract. Rules of Diet i. 256 Cresses, Radishes, Horse-Radishes,..subdue Acidity.

1749 D. Hartley Observ. Man i. i. §3. 98 Acidities, and other Irritations in the Bowels.

1850 J. G. Bruff Jrnl. 1 Feb. in Gold Rush (1944) II. iii. 700 This insipid beverage gave us acidity and nausea.

1899 T. C. Allbutt Syst. Med. VIII. 146 In this form of neurasthenia, pains, sinkings and acidities of the stomach are frequent.

1937 Amer. Home Apr. 134/4 (advt.) Now I smoke a Pack a Day. Smokers Acidity Goes in Jiffy with Bell-ans. Bell-ans for indigestion.

1977 R. B. Tisserand Art of Aromatherapy v. 81 Clove oil counteracts stomach acidity by effectively raising the pH of gastric juice.

2005 Prima Aug. 51/1 Start the day with a cup of hot water and the juice of half a fresh lemon... This balances the acidity caused by stress.

2. figurative. Sharp or acid quality of tone or demeanour; tartness, bitterness; (also) an instance of this, an acid quality.

ΘΚΠ

the mind > emotion > anger > irascibility > ill-naturedness > sourness or bitterness of temper > [noun]

gallc1175

sourness1482

fellc1494

acerbitya1538

tartness1548

acrimony1597

verjuice1598

vinegara1616

acidness1660

asperity1664

thorniness1674

acidity1687

acerbitude1727

acridity1753

vitriol1769

souredness1858

1687 P. Pett Obligation from Oath of Supremacy 112 Some drops of Spirit of Vitriol,..which were..necessary to give a grateful acidity to his [sc. that dull author's] Apozeme.

1711 P. H. Impartial View Two Late Parl. 130 He reflected on each mistake with unusual acidity.

1771 T. Smollett Humphry Clinker II. 176 He began to sweeten the natural acidity of his discourse with the treacle of compliment and commendation.

1823 Blackwood's Edinb. Mag. May 567 The augmented acidity and more naked shallowness of Brougham.

1847 A. Helps Friends in Council I. i. v. 85 Small-minded people carry their narrow notions and their acidity into their benevolence.

1915 W. S. Maugham Of Human Bondage lii. 266 The vicar answered with some acidity.

1992 C. Williams French Encounter viii. 158 She flinched at the cutting acidity in his voice.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).

单词	acidity
释义	acidityn. Brit. /əˈsɪdᵻti/, U.S. /əˈsɪdᵻdi/, /æˈsɪdᵻdi/ Origin: Either (i) a borrowing from French. Or (ii) a borrowing from Latin. Etymons: French acidité; Latin aciditat-, aciditas. Etymology: < French acidité (1545 in Middle French) or its etymon post-classical Latin aciditat-, aciditas acidic substance (5th cent.) < classical Latin acidus sour (see acid adj.) + -tās (see -ty suffix¹; compare -ity suffix). Compare slightly later acid adj. 1. a. The quality or state of being acid, in taste or in chemical properties (or both); sourness, sharpness to the taste. Also: the degree to which a substance, medium, etc., is acid (acid adj. 2a), esp. (Chemistry) as measured by hydrogen-ion concentration or pH. Also: an instance of acid properties, an acid substance. Cf. acid adj. 1a, 2a. ΘΚΠ the world > physical sensation > taste and flavour > sourness or acidity > [noun] sharpnessc1000 sournessc1050 sourheada1400 eagerness?a1425 verdure1508 tartness1530 acetosity1599 acidity1615 sourfulness1617 tetricity1623 tetritude1656 tartarousness1657 acidness1660 sourishness1670 fieriness1675 acescency1756 1615 H. Crooke Μικροκοσμογραϕια iii. ii. 127 An vnprofitable part..it belcheth out into the stomacke, by the short vessell to stirre vp appetite by his aciditie and sharpnes. 1653 J. French Art Distillation (ed. 2) v. 157 It is yet further to be prepared, and that is by giving it a greater acidity. 1669 J. Worlidge Systema Agriculturæ i. 9 The heat of the fire evaporating, and consuming the Acidity of the Earth. 1738 J. Hoofnail New Pract. Improvem. Exper. Colours 15 The strong Acidity that is contained in the Verdigrease is so corrosive. 1787 G. Winter New Syst. Husbandry 333 It did not effervesce in, nor blunt the acidity of vinegar. 1800 S. Brown Treat. Yellow Fever 38 Septon, in combination with oxygene, the principle of acidity, forms the gaseous oxyd of septon (dephlogisticated nitrous air). 1863 D. G. Mitchell My Farm of Edgewood 143 I count upon its brilliant colouring, and its piquant acidity, in the first days of August. 1892 Photogr. Ann. II. 77 He gives a table showing the acidity, alkalinity or neutrality of the chemicals commonly used in photography. 1917 R. Marloth Flora S. Afr.: Dict. Common Names 21 The fruit contains a whitish acidulous powder, but not any tartar, the acidity being due to citric acid. 1949 W. C. Allee et al. Princ. Animal Ecol. xi. 173/2 Pools and streams with acidities as high as pH 1.8. 1961 J. Cheever in New Yorker 11 Nov. 53/2 Leaves were burning somewhere and the smoke smelled, for all its ammoniac acidity, of beginnings. 1975 P. V. Price Taste of Wine iv. 44/3 Generally, you notice acidity as a slightly sharp effect on the parts of the mouth with which the wine first makes contact. 1984 A. C. Duxbury & A. Duxbury Introd. World's Oceans v. 162 The concentration of hydrogen ions (H⁺) in the seawater controls the acidity or alkalinity. 2004 Independent 12 May (Review section) 9/1 Trying to build bioreactors that can work under highly corrosive conditions of high temperatures and pressures, high acidity or high salt concentration is a challenge. b. A condition (supposedly) characterized by an increased amount of acid within a part or whole of the body (in later use, esp. the stomach); an instance of this. ΚΠ 1682 N. Grew Of Mixture i. vi. v. §3 in Anat. Plants 236 The very Cause of the said Viscousness of Phlegm, is chiefly some great Acidity in the Blood. 1732 J. Arbuthnot Pract. Rules of Diet i. 256 Cresses, Radishes, Horse-Radishes,..subdue Acidity. 1749 D. Hartley Observ. Man i. i. §3. 98 Acidities, and other Irritations in the Bowels. 1850 J. G. Bruff Jrnl. 1 Feb. in Gold Rush (1944) II. iii. 700 This insipid beverage gave us acidity and nausea. 1899 T. C. Allbutt Syst. Med. VIII. 146 In this form of neurasthenia, pains, sinkings and acidities of the stomach are frequent. 1937 Amer. Home Apr. 134/4 (advt.) Now I smoke a Pack a Day. Smokers Acidity Goes in Jiffy with Bell-ans. Bell-ans for indigestion. 1977 R. B. Tisserand Art of Aromatherapy v. 81 Clove oil counteracts stomach acidity by effectively raising the pH of gastric juice. 2005 Prima Aug. 51/1 Start the day with a cup of hot water and the juice of half a fresh lemon... This balances the acidity caused by stress. 2. figurative. Sharp or acid quality of tone or demeanour; tartness, bitterness; (also) an instance of this, an acid quality. ΘΚΠ the mind > emotion > anger > irascibility > ill-naturedness > sourness or bitterness of temper > [noun] gallc1175 sourness1482 fellc1494 acerbitya1538 tartness1548 acrimony1597 verjuice1598 vinegara1616 acidness1660 asperity1664 thorniness1674 acidity1687 acerbitude1727 acridity1753 vitriol1769 souredness1858 1687 P. Pett Obligation from Oath of Supremacy 112 Some drops of Spirit of Vitriol,..which were..necessary to give a grateful acidity to his [sc. that dull author's] Apozeme. 1711 P. H. Impartial View Two Late Parl. 130 He reflected on each mistake with unusual acidity. 1771 T. Smollett Humphry Clinker II. 176 He began to sweeten the natural acidity of his discourse with the treacle of compliment and commendation. 1823 Blackwood's Edinb. Mag. May 567 The augmented acidity and more naked shallowness of Brougham. 1847 A. Helps Friends in Council I. i. v. 85 Small-minded people carry their narrow notions and their acidity into their benevolence. 1915 W. S. Maugham Of Human Bondage lii. 266 The vicar answered with some acidity. 1992 C. Williams French Encounter viii. 158 She flinched at the cutting acidity in his voice. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021). < n.1615
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