Containing a high portion of silica opposed to basic
- becoming bad on taste
- being or containing an acid; of an answer having an excessive amount of hydrogen atoms (having a pH of not as much as 7)
- Containing a higher portion of silica; -- in opposition to fundamental.
1877, initially in geology; see acid (n.) + -ic.
pH of not as much as 7. acidic ingredients react with basics to make salts and water. They've a sour taste. A chemical element that yields hydrogen ions whenever in option.
Including enough acid to have a pH below 7.0.
(a.) Containing a top percentage of silica; -- against basic.
Again, acidic humus does not form in calcareous soils; and hence one does not expect to find plants characteristic of acidic peat or humus on calcareous soils.