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# alkaline

adjective (alkaline)

«alkaline» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Alkaline describes a substance that is the opposite of an acid: it has a pH above 7, such as soap, baking soda or bleach. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#m1)
2. An alkaline battery is a common kind of battery that uses an alkaline chemical inside. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#m2)

### In the lessons

In science lessons, the pH scale goes from 0 to 14: acids are below 7, neutral is 7 (pure water), and alkaline is above 7. Indicators such as red cabbage juice or litmus change colour: alkalis turn red litmus blue. Strong alkalis like bleach and oven cleaner can burn skin, so safety goggles and gloves are needed. Some soils are alkaline, which matters to gardeners.

### Examples

- Soap is slightly alkaline. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#x1)
- Red litmus paper turns blue in an alkaline solution. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#x2)
- Baking soda makes the water alkaline. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#x3)
- Bleach is strongly alkaline, so handle it with care. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#x4)
- The TV remote uses alkaline batteries. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#x5)
- Some plants grow best in alkaline soil. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#x6)
- Our cabbage indicator turned green in the alkaline liquid. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/#x7)

### Note

Adjective only. The noun is alkali (plural alkalis). Opposite: acidic. A substance that is neither is neutral. Trap: alkaline does not mean safe; strong alkalis are as dangerous as strong acids. Myth: alkaline water does not change the pH of your blood.

## On Mova

- [Trees and pragmatics of «alkaline» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/alkaline/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«alkaline» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/alkaline.html) on Mova free.