[vin-i-ger] 
| 1. | a sour liquid consisting of dilute and impure acetic acid, obtained by acetous fermentation from wine, cider, beer, ale, or the like: used as a condiment, preservative, etc. |
| 2. | Pharmacology. a solution of a medicinal substance in dilute acetic acid, or vinegar. |
| 3. | sour or irritable speech, manner, or countenance: a note of vinegar in his voice. |
| 4. | Informal. vigor; high spirits; vim. |
vinegar vin·e·gar (vĭn'ĭ-gər)
n.
An impure dilute solution of acetic acid obtained by fermentation beyond the alcohol stage and used as a preservative.
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