acidificationn.

Brit.

/əˌsɪdᵻfᵻˈkeɪʃn/, U.S.

/əˌsɪdəfəˈkeɪʃ(ə)n/,

/æˌsɪdəfəˈkeɪʃ(ə)n/

Origin: Formed within English, by derivation; modelled on a French lexical item. Etymon: acidify v.

Etymology: < acidify v. (see -fication suffix), after French acidification (1786 in the passage translated in quot. 1788).

The action or process of making something (more) acidic; conversion into an acid; addition of acid. In later use spec.: the ongoing increase in acidity (or reduction in alkalinity) of a habitat or ecosystem (especially the ocean); esp. in ocean acidification. Cf. acidify v.Ocean acidification is chiefly the result of increasing levels of atmospheric carbon dioxide dissolving in the water. Acidification of fresh water and soils has more complex causes, which include acid rain caused by the release of sulphur dioxide and nitrogen oxide into the atmosphere.

ΘΚΠ

the world > matter > chemistry > chemical substances > acids > [noun] > acidification

acidification1788

1788 W. Nicholson tr. A.-F. de Fourcroy Elements Nat. Hist. & Chem. IV. 365 The arthritic salt, which was caused..by the thickening and acidification of the nutritive fluid.

1837 W. Whewell Hist. Inductive Sci. III. xiv. vii. 141 The leading generalisation of Lavoisier, that acidification was always combination with oxygen, was found untenable.

1844 G. Fownes Man. Elem. Chem. 403 The best vinegar is made from wine by spontaneous acidification.

1903 Public Health 16 11 The oil which separates on acidification is insoluble in water.

1933 S. W. Cole Pract. Physiol. Chem. (ed. 9) iv. 106 The precipitate is soluble in dilute alkalis and is reprecipitated by acidification.

1994 Nat. World Winter 16/3 Acidification of habitats may well become stabilised, though reversal will prove more difficult.

2006 New Scientist 5 Aug. 30/1 Some claim the term ‘ocean acidification’ is a misnomer, because the oceans are becoming less alkaline rather than actually becoming acidic (falling below pH 7), but most scientists think it is correct to describe any process that lowers pH as acidification.

2021 N.Z. Herald (Nexis) 21 Apr. Carbon dioxide..is released from the seabed sediment into the water, and can increase ocean acidification, as well as adversely affecting productivity and biodiversity.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).

单词	acidification
释义	acidificationn. Brit. /əˌsɪdᵻfᵻˈkeɪʃn/, U.S. /əˌsɪdəfəˈkeɪʃ(ə)n/, /æˌsɪdəfəˈkeɪʃ(ə)n/ Origin: Formed within English, by derivation; modelled on a French lexical item. Etymon: acidify v. Etymology: < acidify v. (see -fication suffix), after French acidification (1786 in the passage translated in quot. 1788). The action or process of making something (more) acidic; conversion into an acid; addition of acid. In later use spec.: the ongoing increase in acidity (or reduction in alkalinity) of a habitat or ecosystem (especially the ocean); esp. in ocean acidification. Cf. acidify v.Ocean acidification is chiefly the result of increasing levels of atmospheric carbon dioxide dissolving in the water. Acidification of fresh water and soils has more complex causes, which include acid rain caused by the release of sulphur dioxide and nitrogen oxide into the atmosphere. ΘΚΠ the world > matter > chemistry > chemical substances > acids > [noun] > acidification acidification1788 1788 W. Nicholson tr. A.-F. de Fourcroy Elements Nat. Hist. & Chem. IV. 365 The arthritic salt, which was caused..by the thickening and acidification of the nutritive fluid. 1837 W. Whewell Hist. Inductive Sci. III. xiv. vii. 141 The leading generalisation of Lavoisier, that acidification was always combination with oxygen, was found untenable. 1844 G. Fownes Man. Elem. Chem. 403 The best vinegar is made from wine by spontaneous acidification. 1903 Public Health 16 11 The oil which separates on acidification is insoluble in water. 1933 S. W. Cole Pract. Physiol. Chem. (ed. 9) iv. 106 The precipitate is soluble in dilute alkalis and is reprecipitated by acidification. 1994 Nat. World Winter 16/3 Acidification of habitats may well become stabilised, though reversal will prove more difficult. 2006 New Scientist 5 Aug. 30/1 Some claim the term ‘ocean acidification’ is a misnomer, because the oceans are becoming less alkaline rather than actually becoming acidic (falling below pH 7), but most scientists think it is correct to describe any process that lowers pH as acidification. 2021 N.Z. Herald (Nexis) 21 Apr. Carbon dioxide..is released from the seabed sediment into the water, and can increase ocean acidification, as well as adversely affecting productivity and biodiversity. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.1788
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