• Webster's Revised Unabridged Dictionary
    • n Acidness Acidity; sourness.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Some birds have been know to put ants into their feathers because the ants squirt formic acid, which kills parasites
    • n acidness Sourness; acidity.
    • ***


  • Seneca
    “Anger: an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured.”
  • Source Unknown
    Source Unknown
    “Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured.”
  • Andrew Jensen
    Andrew Jensen
    “The real acid test of courage is to be just your honest self when everybody is trying to be like somebody else.”
  • Henry Ward Beecher
    “Fear secretes acids; but love and trust are sweet juices.”
  • Lord Trent
    Lord Trent
    “I learned very early in my life in Whitehall, the acid test of any political question is; What is the Alternative?”
  • Dorothy Parker
    “Razors pain you; rivers are damp; acids stain you; and drugs cause cramp. Guns aren't lawful; nooses give; gas smells awful; you might as well live.”


Acid test - An acid test is something that proves whether something is good, effective, etc, or not.


In literature:

Wash the face in a dilution of carbolic acid, allowing one teaspoonful to a pint of water.
"Searchlights on Health: Light on Dark Corners" by B.G. Jefferis
The phosphoric acid in the acid phosphate was needed.
"Crops and Methods for Soil Improvement" by Alva Agee
A further washing in hot lye, and a bath in an acid pickle, completely removes every vestige of wax from the shell.
"The Building of a Book" by Various
The skeins are next drawn through an acid solution to neutralize the chloride.
"Textiles" by William H. Dooley
Carbonic acid gas is one of the feeblest absorbers of the radiant heat emitted by solid bodies.
"Fragments of science, V. 1-2" by John Tyndall
It separates the volatile alkali in salt ammoniac from the acid, when it is mixed with a warm solution of that salt.
"Experiments upon magnesia alba, Quicklime, and some other Alcaline Substances" by Joseph Black
They contain a great excess of mineral acids.
"Northern Nut Growers Association Report of the Proceedings at the Eleventh Annual Meeting" by Various
It is used also, as the reader will recall, in making acid hypo for acid fixing.
"Bromide Printing and Enlarging" by John A. Tennant
Explain that all fruit juices contain more or less acid.
"Ontario Teachers' Manuals: Household Management" by Ministry of Education
The water with which these three substances are to be mixed must be clean and must contain no acid and no strong alkali.
"Diggers in the Earth" by Eva March Tappan

In poetry:

How dang'rous is the fruit, whose acid juice
Corrodes the teeth of all human race?
Be thou not one of those, my son, who chuse
To feed on fruits like them, in any case.
"Stanza's Concerning Some Persons And Things, That Are Mentioned In The Holy Scriptures" by Rees Prichard
"That's tore it," I remarks be'ind me 'and.
The parson nods. 'E's smilin' now all gay.
Ten minutes later, an' the 'ole thing's planned
Fer Rose's 'oliday.
We put the acid on, an' scold an' tease
Till she agrees.
"Rose" by C J Dennis
Eating their flesh, half-savage with black fur.
Acid and gipsy-sweet, I thought of her,
Isabella, the dead girl, who has lingered on
Defiantly when all have gone away,
In an old orchard where swallows never stir.
"Wild Grapes" by Kenneth Slessor
When once the twilight locks no longer
Locked in the long worm of my finger
Nor damned the sea that sped about my fist,
The mouth of time sucked, like a sponge,
The milky acid on each hinge,
And swallowed dry the waters of the breast.
"When Once The Twilight Locks No Longer" by Dylan Thomas
Every smile, every word, every move you make,
as falling bodies to my earth, I press;
as into metal acids eat and ache,
I etch you in my brains with instinct's stress,
beautiful shapeliness,
your substance fills the essence they partake.
"Ode [Óda]" by Attila Jozsef
Yonder there flow, untwining and twining their loops anew!
The mighty, silvery rivers, through the translucent night;
And a glint as of wondrous acids sparkles with magic light
the cup that the lake outstretches towards the mountains blue.
"The Glory Of The Heavens" by Emile Verhaeren

In news:

The hazardous material is believed to be chloric acid, the dispatcher said.
ACIDS are invaluable mainstay cooking ingredients.
Acid drainage not just a mine issue anymore.
" Barbera is a grape with naturally good acidity that makes it a terrific complement to food," notes Colman.
This versatile wine is a great introduction to barbera , with its red and dark fruits, characteristic freshness and bright acidity.
Battery acid spill affects Columbia police department.
Battery acid spill affects Columbia police department.
Oceans Turning Acidic Faster Than at Any Point in Last 300 Million Years.
Gout is a condition in which there is too much uric acid in the joints, tissues, and sometimes, even the kidneys.
Kommerell, Paper read at the IVth Bile Acid Meeting held in Basle, in October, 1976.
Billing, Paper read at the IVth Bile Acid Meeting held in Basle, in October, 1976.
Biomax Strong is a petrochemical additive for polylactic acid (PLA) packaging.
Coffee is a complex chemical soup, and many of its chemicals, including some that produce astringency rather than bitterness, and even some acids, have been implicated in the perception of bitterness.
GO BLITHE SPIRIT Noël Coward's comedy faced an acid test in its first outing: It opened in the darkest days of World War II, when London was undergoing the Blitz.
LOS ANGELES — Jarrow Formulas earlier this month launched PhosphOmega, a phospholipid-omega-3 fatty acid complex.

In science:

It is well known fact, that various amino acids manifest different occurrence frequency, within a genome, or a gene.
Codon Usage Bias Measured Through Entropy Approach
Here the index j enlists the synonymous codons encoding the same amino acid, and Ji is the set of such codons for i-th amino acid, and ϕi is the frequency of that latter.
Codon Usage Bias Measured Through Entropy Approach
Surely, the list of amino acids must be extended with stop signal (encoded by three codons).
Codon Usage Bias Measured Through Entropy Approach
Finally, isotropic wet-etching with 1% hydrofluoric acid selectively removes the 400 nm thick sacrificial layer in the vicinity of the already etched trenches.
Laterally defined freely suspended quantum dots in GaAs/AlGaAs heterostructures
It contains approximately 30.000 amino acids.
The 3-dimensional random walk with applications to overstretched DNA and the protein titin