- belonging or pertaining to acids or the anhydrides of acids.
- having only a part of the hydrogen of an acid replaced by a metal or its equivalent: an acid phosphate.
- having a pH value of less than 7.Compare alkaline(def 4).
Origin of acid
Synonyms for acid
Examples from the Web for acidly
Senator Lindsey Graham acidly observed that it sounded as if the troops might be leaving before they even arrived.
Fourteen hundred lines are deemed sufficient for an acting drama, observed Mr. Kemble acidly.The Talk of the Town, Volume 2 (of 2)|James Payn
"I'll thank you not to mention his name while I'm eating," Mrs. Klein said acidly.The Mighty Dead|William Campbell Gault
"You can have both if you will permit me to carry out my plans," said Don Pablo, acidly polite.A Son of Perdition|Fergus Hume
- of, derived from, or containing acidan acid radical
- being or having the properties of an acidsodium bicarbonate is an acid salt
Word Origin for acid
1620s, "of the taste of vinegar," from French acide (16c.) or directly from Latin acidus "sour, sharp," adjective of state from acere "to be sour," from PIE root *ak- "sharp, pointed" (see acrid). Figurative use from 1775; applied to intense colors from 1916. Acid test is American English, 1892, from the frontier days, when gold was distinguished from similar metals by application of nitric acid. Acid rain is first recorded 1859 in reference to England.
When I was on acid I would see things that looked like beams of light, and I would hear things that sounded an awful lot like car horns. [Mitch Hedberg, 1968-2005, U.S. stand-up comic]
Acid rock (type played by or listen to by people using LSD) is also from 1966; acid house dance music style is 1988, probably from acid in the hallucinogenic sense + house "dance club DJ music style."
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.