acid-, acidi-, acido-, -acidity +

1. Sour, tart, sharp to the taste; of the taste of vinegar.
2. A sharp, bitter, or sarcastic quality in speech or writing.
3. A sour substance, in chemistry: A substance belonging to a class of which the commonest and most typical members are sour, and have the property of neutralizing alkalis, and of changing vegetable blues to red; all of which are compounds of hydrogen with another element or elements (oxygen being generally the third element), and in the decomposition of a compound substance are relatively electro-negative, and borne to the positive pole.

A protein that dissolves in acids and shows an acid reaction.

An excess of amino acids in urine.

1. A condition in which blood pH is below normal.
2. A condition in which the acidity of the blood is much higher than normal and desirable.

It is one feature of severe untreated diabetes.

Someone who takes the illegal drug LSD regularly (slang).

1. Sour or bitter in taste.
2. Of, pertaining to, or of the nature of, an acid.

Producing or yielding an acid.

Capable of being converted into, or of combining so as to form, an acid.

1. The process of becoming acid, e.g., when soil or water is polluted by acid rain.
2. The act or process of acidifying; conversion into an acid.

Made acid; converted into an acid.

Anything that acidifies, or generates an acid.

The name was originally given (in error) to oxygen, as the supposed active agent in producing acids.

1. To make, turn into, or to become acid.
2. To render as an acid, as by the addition of a strong acid.

Making acid; converting into an acid; having the power to change into an acid.

Oxygen is called the acidifying principle or element.

1. An instrument for measuring the strength of acids or the amount of acid in a solution.
2. An instrument used in performing acidimetry.

The chemical process of measuring the strength of acids; that is to say, determining the quantity of pure free acid contained in a liquid.