| 释义 |
acetous, a.|ˈæsɪtəs|
[ad. Fr. acéteux, -euse, ad. late L. acētōs-us; see acetose.]
a. Of or pertaining to vinegar; having the qualities of vinegar; sour. Also fig.
1778R. Lowth On Isaiah (1778) 268 Unless further fermentation is promoted by their lying longer on their own lees, they will..soon degenerate into a liquor of an acetous kind. 1837Carlyle Fr. Rev. I. iv. iv. 200 A man..whose small soul, transparent wholesome-looking as small ale, could by no chance ferment into virulent alegar, the mother of ever new alegar, till all France were grown acetous, virulent. 1865Athenæum No. 1942. 52/1 Stimulating unguents and acetous lotions.
b. acetous fermentation: The chemical reaction by which sugar or alcohol is changed into vinegar; occurring naturally when bread, milk, or beer turns sour.
1794Sullivan View of Nat. I. 148 This latter, modified by the various fermentations, produces..the acid of vinegar, after having been anew modified by the acetous fermentation. 1822J. Imison Science & Art II. 159 The vinous fermentation must be checked in time, otherwise the acetous fermentation would begin. 1833Penny Cycl. I. 237/2 Fermentation is of three kinds: the vinous, producing alcohol; the acetous, yielding vinegar; and the putrefactive. 1857Hawthorne Fr. & It. Journals II. 236 The Romans like their bread..in a state of acetous fermentation.
c. acetous acid: A name formerly given to vinegar in the belief that it differed from acetic acid by containing one atom less of oxygen in its molecule. Since it has been ascertained that vinegar is only dilute acetic acid the name has become obsolete.
1791Hamilton tr. Berthollet, Art of Dyeing I. i. §1 ii. 30 [It] combines with the acetous acid and produces an acetite of alumine. 1796Pearson in Phil. Trans. LXXXVI. 398 It afforded no acetite of lead on digesting it in acetous acid. 1806Brit. Encycl. I. 13 Acetous acid in that concentrated state in which it is called radical vinegar. 1828Marcet Conversations on Chemistry II. 218 The acetous acid is developed by means of the acetous fermentation. |