Acid

Word ACID
Character 4
Hyphenation ac id
Pronunciations /ˈæs.ɪd/

Definitions and meanings of "Acid"

What do we mean by acid?

Any of a class of substances whose aqueous solutions are characterized by a sour taste, the ability to turn blue litmus red, and the ability to react with bases and certain metals to form salts. noun

A substance that yields hydrogen ions when dissolved in water. noun

A substance that can act as a proton donor. noun

A substance that can accept a pair of electrons to form a covalent bond. noun

A substance having a sour taste. noun

The quality of being sarcastic, bitter, or scornful. noun

Of, relating to, or containing an acid. adjective

Having a high concentration of acid. adjective

Having the characteristics of an acid. adjective

Having a pH of less than 7. adjective

Having a relatively high concentration of hydrogen ions. adjective

Containing a large proportion of silica. adjective

Having a sour taste. synonym: sour. adjective

Biting, sarcastic, or scornful. adjective

Sour, sharp, or biting to the taste; tasting like vinegar: as, acid fruits or liquors.

Originally, a substance possessing a sour taste like that of vinegar; in modern chemical use, a name given to a large number of compounds which do not necessarily possess this property. noun

A sour substance.

Any of several classes of compound having the following properties:

Lysergic acid diethylamide (LSD)

Synonyms and Antonyms for Acid

The word "acid" in example sentences

‡ Figuratively, acid applies to anything sour or biting; for example, an “acid wit” is sharp and unpleasant. ❋ Unknown (2002)

An excess of the trioxide may dissolve in the strong sulphuric acid, forming what is known as _fuming sulphuric acid_. ❋ William McPherson (N/A)

If ammonia be added to the original solution, _alkaline hæmatin_ is produced, or if acetic acid be chosen, _acid hæmatin_ is produced, and each gives its appropriate absorption bands. ❋ Unknown (N/A)

The commercial acid, often called _muriatic acid_, is usually colored yellow by impurities. ❋ William McPherson (N/A)

_Hydrochloric acid_ gas is also decomposed at ordinary temperatures with flame, and, if there is not a large excess of hydrochloric acid present, with detonation. ❋ Various (N/A)

Concentrated nitric acid highly charged with this substance is called _fuming nitric acid_. ❋ William McPherson (N/A)

_Pepsin_ is the enzyme which acts upon proteids, but it is able to act only in an acid medium — a condition which is supplied by the _hydrochloric acid_. ❋ Francis M. Walters (N/A)

The free acidity is sometimes expressed as _acid value_, which is the amount of KOH in milligrammes necessary to neutralise the free acid in 1 gramme of fat or oil. ❋ H. A. Appleton (N/A)

Stale butter or that which is improperly kept develops an acid called _butyric acid_, which gives a disagreeable odor and flavor to butter and often renders it unfit for use. ❋ Unknown (N/A)

The sulphuric acid thus estimated was present in the leather as _free sulphuric acid_. ❋ Georg Grasser (N/A)

By acid we mean sour, or sharp, like vinegar, lemon juice, vitriol (_sulphuric acid_), and _carbonic acid_ (which forms the bubbles in and gives the sharp taste to plain soda-water). ❋ Woods Hutchinson (1896)

The arsenic will be condensed in the ~U~-tube, together with the greater part of the hydrochloric acid; transfer the distillate to a beaker washing out the tube two or three times with water; add a small piece of litmus paper; neutralise with ammonia; render faintly _acid_ with dilute hydrochloric acid; add 2 grams of bicarbonate of soda in solution; and dilute to 250 c.c. The solution is now ready for titrating. ❋ Cornelius Beringer (1886)

This, therefore, is the first degree of oxygenation of sulphur; the 2d converts it into sulphur_ous_ acid; the 3d into the sulphur_ic_ acid; and 4thly, if it was found capable of combining with a still larger proportion of oxygen, it would then be termed _super-oxygenated sulphuric acid_. ❋ Unknown (1813)

-- There is a certain vegetable acid called _Gallic acid_, which has the remarkable property of precipitating this salt black -- I shall pour a few drops of the gallic acid into this solution of sulphat of iron -- ❋ Unknown (1813)

-- But, in fact, the result of this mixture is the formation of oxy-muriatic acid, as the muriatic acid oxygenates itself at the expence of the nitric; this mixture, therefore, though it bears the name of _nitro-muriatic acid_, acts on gold merely in virtue of the oxy-muriatic acid which it contains. ❋ Unknown (1813)

The same; but though it has long been employed for a variety of purposes, its nature was unknown until Scheele, the great Swedish chemist, discovered that it consisted of lime united with a peculiar acid, which obtained the name of _fluoric acid_. ❋ Unknown (1813)

In this case a new order of attraction takes place, from which a peculiar acid is formed, called the _sebacic acid_. ❋ Unknown (1813)

Plastic materials are sometimes termed _formative_ elements; both terms imply the belief that they are capable of giving shape, or form, not only to themselves, but also to other kinds of matter not possessed of formative power.] [Footnote 5: The slow conversion of phosphorus into phosphoric acid takes place in the animal organism; its gradual oxidation in the open air gives rise only to an imperfectly oxidised body -- _phosphorous acid_. ❋ Charles Alexander Cameron (1875)

The over-prescribing "owes a lot to advertising, specifically to use of the term 'acid reflux,'" Hassall wrote. ❋ Unknown (2011)

Cross Reference for Acid

What does acid mean?

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