acid

Meanings

1. 1
   adj

   having the characteristics of an acid

   an acid reaction

2. 2
   adj

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

   acid fruits or liquors

3. 3
   adj

   Sour-tempered.

   His response was harsh and acid.

4. 4
   adj

   Of or pertaining to an acid; acidic.

   acid soils

5. 5
   noun

   Any compound which yields H+ ions (protons) when dissolved in water; an Arrhenius acid.

   SE onset depends on a complex network of interactions among plant growth regulators, mainly auxins and cytokinins, during the proembryogenic early stages, and ethylene and gibberellic and abscisic acids later in the development of somatic embryos.

6. 6
   noun

   Any corrosive substance.

   You are in error. / This is terror. / This is your banishment. This land is mine. / This is what you earn. / This is the Law of No Return. / This is the sour dough, this the sweet wine. / This is my history, this my race / And this unhappy man threw acid in my face.

7. 7
   noun

   LSD, lysergic acid diethylamide.

   In the end, though, there is one sure way to distinguish a real hippie from his assorted sympathizers: hippies drop acid. That is, real hippies frequently, if irregularly, ingest LSD.

8. 8
   noun

   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.

Etymology

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