What does acid means?

Question

What does acid means?

Answer 1

Chemistry.

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.

A substance that yields hydrogen ions when dissolved in water.

A substance that can act as a proton donor.

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

A substance having a sour taste.

The quality of being sarcastic, bitter, or scornful: wrote with acid about her first marriage.

Slang. See LSD1.

adj.

Chemistry.

Of, relating to, or containing an acid.

Having a high concentration of acid.

Having the characteristics of an acid.

Having a pH of less than 7.

Having a relatively high concentration of hydrogen ions.

Geology. Containing a large proportion of silica: acid rocks.

Having a sour taste. See synonyms at sour.

Biting, sarcastic, or scornful: an acid wit; an acid tone of voice.

[From Latin acidus, sour, from acēre, to be sour.]

Food and Nutrition: acid

Chemically, compounds that dissociate (ionize) in water to give rise to hydrogen ions (H+); they taste sour. See also alkali; amino acids; buffers; esters; fatty acids; pH; salt.

Food Lover's Companion: acid

The word "acid" comes from the Latin acidus, meaning "sour." All acids are sour to some degree. Sourness (acidity) is found in many natural ingredients such as vinegar (acetic acid), wine (tartaric acid), lemon juice (citric acid), sour-milk products (lactic acid), apples (malic acid) and rhubarb leaves (toxic oxalic acid). When used in a marinade, acids-such as wine and lemon juice-are natural tenderizers because they break down connective tissue and cell walls.

Dental Dictionary: acid

A chemical substance that, in an aqueous solution, undergoes dissociation with the formation of hydrogen ions; pH levels range from 0 to 6.9.

Geography Dictionary: acid

A substance containing hydrogen ions which can be neutralized by an alkali. The pH of acid is below 7. An acid soil has a pH of less than 7. Acidity in a soil may be due to the leaching out of cations when precipitation exceeds evapotranspiration. The cations are replaced by hydrogen ions. Other factors promoting acidity in a soil include the nature of the vegetation, and thus the humus, and the acidity of the parent rock. Examples of acid soils are podzols and brown earths.

The term ‘acid’ as applied to rocks has an entirely different meaning. See acid rock.

Britannica Concise Encyclopedia: acid

Any substance that in water solution tastes sour, changes the colour of acid-base indicators (e.g., litmus), reacts with some metals (e.g., iron) to yield hydrogen gas, reacts with bases to form salts, and promotes certain chemical reactions (e.g., acid catalysis). Acids contain one or more hydrogen atoms that, in solution, dissociate as positively charged hydrogen ions. Inorganic, or mineral, acids include sulfuric acid, nitric acid, hydrochloric acid, and phosphoric acid. Organic acids include carboxylic acids, phenols, and sulfonic acids. Broader definitions of acids cover situations in which water is not present. See also acid-base theory.

Sports Science and Medicine: acid

A substance that dissolves in water and, in solution, liberates hydrogen ions (protons). An acid reacts with a base to give salt and water only.

Wine Lover's Companion: acids

Acids are present naturally in grapes; they're also produced during the fermentation process. The acid content of grapes can be affected by several factors. Climate, for instance, plays a major role. Wines made from grapes grown in hot viticultural regions or during particularly hot seasons have lower levels of acid. Conversely, cooler regions or growing seasons produce wines with a higher acid concentration. Soil is another component affecting the acid concentration in grapes. For example, potassium-deficient soil may produce high-acid grapes.

Science Dictionary: acid

A sour-tasting material (usually in a solution) that dissolves metals and other materials. Technically, a material that produces positive ions in solution. An acid is the opposite of a base and has a pH of 0 to 7. A given amount of an acid added to the same amount of a base neutralizes the base, producing water and a salt. Common vinegar, for example, is a weak solution of acetic acid.

Figuratively, acid applies to anything sour or biting; for example, an “acid wit” is sharp and unpleasant.

An acid (often represented by the generic formula HA [H+A-]) is traditionally considered any chemical compound that, when dissolved in water, gives a solution with a pH less than 7.0. That approximates the modern definition of Johannes Nicolaus Brønsted and Martin Lowry, who independently defined an acid as a compound which donates a hydrogen ion (H+) to another compound (called a base). Common examples include acetic acid (in vinegar) and sulfuric acid (used in car batteries). Acid/base systems are different f

Answer 2

if you're refering to the drug-lsd.

otherwise dictionary.com for more definitions

Answer 3

It used to be slang for the hallucinogenic drug LSD.