acid

adj

Etymology: Etymology tree Proto-Indo-European *h₂eḱ- Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *h₂eḱéh₁yeti Proto-Italic *akēō Latin aceō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin acidusbor. French acidebor. English acid From French acide, from Latin acidus (“sour, acid”), from aceō (“to be sour”). Doublet of agita.

1. Sour, sharp, or biting to the taste; tart; having the taste of vinegar.

   “acid fruits or liquors”

2. Sour-tempered.

   “His response was harsh and acid.”

   “His voice was as stern and his face as acid as ever.”

3. Of or pertaining to an acid; acidic.

   “acid soils”

   “Like other nyssas, it is in nature a creature of swampy places and looks loveliest where massed close to water and reflected in it, but justifies itself elsewhere if the soil is moist and acid, succeeding in wet clay.”

4. Denoting a musical genre that is a distortion (as if hallucinogenic) of an existing genre, as in acid house, acid jazz, acid rock.

noun

1. Acronym of atomicity, consistency, isolation, and durability, a set of properties that guarantee database transactions are processed reliably.

   “SQLite relies on native file locking and page journaling to implement ACID properties.”