acidic
part of speech
adjective (acidic, more acidic, most acidic)
meaning for a pupil
1) Acidic describes something that contains acid or acts like an acid. tree →
2) Acidic food or drink tastes sour, like lemons or vinegar. tree →
3) In science, an acidic liquid has a pH lower than 7. tree →
sense in the lessons
In science pupils test liquids with indicator paper or red-cabbage water: acidic liquids turn the paper red or pink, neutral water stays green, alkaline liquids turn blue or purple. In everyday life lemon juice, vinegar and fizzy drinks are acidic, and acidic drinks can harm tooth enamel. Phrases: «acid rain», «acidic soil».
examples
- Lemon juice is very acidic. tree →
- Vinegar tastes sour because it is acidic. tree →
- Fizzy drinks are acidic and can harm your teeth. tree →
- The indicator turned red, so the liquid was acidic. tree →
- Blueberries grow well in acidic soil. tree →
- Our stomach makes an acidic juice to help digest food. tree →
- Is soap acidic or alkaline? tree →
note
Opposite: alkaline (or basic); in between: neutral (pH 7). Not every acidic thing is dangerous: lemon juice is safe, but strong acids in a lab burn the skin. A lower pH number means more acidic.
In the corpora
- Even sugar-free fizzy drinks are acidic and can soften enamel; water and milk are the safest drinks for teeth.
- Acidic food, like tomato or lemon, makes a sore spot in the mouth sting.
- Fizzy drinks are slightly acidic, because carbon dioxide in water makes a weak acid, and some colas also have phosphoric acid added.
- Unripe fruit is more acidic; as fruit ripens, sugar goes up and acid goes down.
- An indicator is a substance whose colour shows whether something is acidic or alkaline.
Trees and pragmatics
Every meaning and example of «acidic» parsed by Mova, each sentence with its dependency tree and frames.