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anything sour; -- used also metaphorically. Here's the challenge: . . . I warrant there's vinegar and pepper in't. Shak. Aromatic vinegar, strong acetic acid highly flavored with aromatic substances. -- Mother of vinegar. See 4th Mother. -- Radical vinegar, acetic acid. -- Thieves' vinegar. See under Thief. -- Vine…

Any of several fruit flies, esp. Drosophila ampelopophila, which breed in imperfectly sealed preserves and in pickles.

See Vinaigrette, n., 2.

A whip scorpion, esp. a large Mexican species (Thelyphonus giganteus) popularly supposed to be very venomous; -- from the odor that it emits when alarmed.

Having the nature of vinegar; sour; unamiable.

A vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc.

Of a pertaining to vinegar; producing vinegar; producing vinegar; as, acetic fermentation.

act of making acetous or sour; the process of converting, or of becoming converted, into vinegar.

To convert into acid or vinegar.

An instrument for estimating the amount of acetic acid in vinegar or in any liquid containing acetic acid.

The act or method of ascertaining the strength of vinegar, or the proportion of acetic acid contained in it. Ure.

Sour like vinegar; acetous.

ted with, acetification; as, acetous fermentation. Acetous acid, a name formerly given to vinegar.

Sour, sharp, or biting to the taste; tart; having the taste of vinegar: as, acid fruits or liquors. Also fig.: Sour-tempered. He was stern and his face as acid as ever. A. Trollope.

Sour ale; vinegar made of ale. Cecil.

benzene group, C6H6. The term is extended also to many of their derivatives. -- Aromatic vinegar. See under Vinegar.

Filled with white flakes; mothery; -- said vinegar when containing mother. [Prov. Eng.] Halliwell.

The expressed juice of apples. It is used as a beverage, for making vinegar, and for other purposes.

A bluish violet, crystalline substance obtained in the purification of crude wood vinegar. It is regarded as a complex quinone derivative of diphenyl; -- called also cedriret.

rate acid by evaporation; to concentrate by washing; -- opposed to Ant: dilute. Spirit of vinegar concentrated and reduced to its greatest strength. Arbuthnot.