Enter a clue or pattern or both:

The Clue

Baseless? (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
Carbolic ___
Fatty ___
Lsd
Mordant
Nasty
___ rain
Sarcastic
Sour
Tart
Vitriolic
Breakdown cause
Etcher's need
Folic, e.g.
Kind of rain
One kind of rain
Kind of rock
Kind of test
One kind of test
Lactic or xanthic
Nasty, as a comment
Niacin, e.g.
Nitric or boric
Sour; biting
Word with rock
Aqua fortis
Cause of much bellyaching?
Low-pH compound
___ rain (lake pollutant)
What alkali neutralizes
Word with rock or rain
Word with test or rain
It has a low pH
It turns litmus red
This turns litmus red
What red indicates in litmus tests

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"