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acid highly flavored with aromatic substances. -- Mother of vinegar. See 4th Mother. -- Radical vinegar, acetic acid. -- Thieves' vinegar. See under Thief. -- Vinegar eel (Zoöl.), a minute nematode worm (Leptodera oxophila, or Anguillula acetiglutinis), commonly found in great numbers in vinegar, sour paste, and ot…

The hypothetical radical C2H3, regarded as the characteristic residue of ethylene and that related series of unsaturated hydrocarbons with which the allyl compounds are homologous.

n, and of toleration to Dissenters, were, after 1679, called Whigs. The terms Liberal and Radical have now generally superseded Whig in English politics. See the note under Tory.

The hypothetical radical supposed to be characteristic of xanthic acid. [Archaic]

The radical characteristic of xenylic compounds.

Any one of three metameric radicals which are characteristic respectively of the three xylenes.

Any one of three metameric radicals, CH2.C6H4.CH2, derived respectively from the three xylenes. Often used adjectively; as, xylylene alcohol.

A suffix used as a characteristic termination of chemical radicals; as in ethyl, carbonyl, hydroxyl, etc.

A double fluoride of zirconium and hydrogen, or some other positive element or radical; as, zircofluoride of sodium.