a·ce·tous 
(ə-sētəs, ăsĭ-təs)
(ə-sētəs, ăsĭ-təs)adj.
1. Of, relating to, or producing acetic acid or vinegar.
2. Having an acetic taste; sour-tasting.
[Middle English, sour, from Medieval Latin acētōsus, vinegary, from Latin acētum, vinegar; see ACETUM.]
- light mill
- light-minded
- light-mindedly
- light-mindedness
- lightness
- lightness
- lightning
- lightning arrester
- lightning bug
- lightning chess
- lightning rod
- light opera
- light out
- light pen
- light plane
- lightplane
- light pollution
- lightproof
- light rail
- light-rail
- light reaction
- light reflex
- lights
- light sail
- lightship