concentration
part of speech
noun (concentration, concentrations)
meaning for a pupil
1) Giving all your attention to one thing: the puzzle needs concentration. tree →
2) (science) The amount of a substance in a liquid or mixture: a high concentration of salt. tree →
3) A large number of people or things in one place: a concentration of shops in the town centre. tree →
sense in the lessons
In school, concentration helps learning; teachers say "lose concentration" or "break your concentration". In science, a stronger solution has a higher concentration (more sugar per cup of water). In history, concentration camps were terrible prisons. Phrases: lose concentration, full concentration, high concentration, concentration span.
examples
- Chess needs a lot of concentration. tree →
- The noise broke my concentration. tree →
- Sea water has a higher concentration of salt than river water. tree →
- Adding more water lowers the concentration of the squash. tree →
- There is a concentration of cafés near the station. tree →
- Her concentration lasted for the whole test. tree →
- 20 g of sugar in 100 ml is a higher concentration than 20 g in 200 ml. tree →
note
Uncountable for attention; countable in science (different concentrations). Verb: concentrate. In maths and science, concentration = amount of substance / amount of liquid, so more liquid means a weaker mix.
In the corpora
- Even mild dehydration can cause headaches, tiredness and poor concentration, and you can be dehydrated before you feel thirsty.
- Activity makes the heart, lungs, muscles and bones stronger, and helps sleep, mood and concentration.
Trees and pragmatics
Every meaning and example of «concentration» parsed by Mova, each sentence with its dependency tree and frames.