The Clue
Base's opposite (4 letter answer)
The Answer
ACID
Tags
Notes
The answer ACID is seen frequently, appearing about once every 70 puzzles.
Related Clues
Amino, for one
Astringent
Biting
Boric ___
Hydrofluoric ___
___ rain
Sour
Sulfuric ___
Tart
Battery fluid
Caustic substance
Etcher's fluid
Etcher's need
Etcher's substance
Etching liquid
Kind of indigestion
Kind of rain
Kind of rock
Kind of test
Kind of tongue
Lab liquid
LSD, familiarly
Niacin, e.g.
Nitric or boric
Part of DNA
Part of RNA
Stomach botherer
Substance for etching
Destructive kind of rain
Kind of wit or test
Like gastric juice
Parietal cell secretion
What alkali neutralizes
Word with test or rain
Timothy Leary dropped it
Definition
ACID as a noun:
1. any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
2. (acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen) = street name for lysergic acid diethylamide
ACID as an adjective:
1. (acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, venomous, virulent, vitriolic) = harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique"
2. (acidic, acid, acidulent, acidulous) = being sour to the taste
3. having the characteristics of an acid; "an acid reaction"