concentration

play
noun con·cen·tra·tion \ˌkän(t)-sən-ˈtrā-shən, -ˌsen-\

Definition of concentration

  1. 1 a :  the act or process of concentrating :  the state of being concentrated; especially :  direction of attention to a single object b :  an academic major or area of focus within a major

  2. 2 :  a concentrated mass or thing

  3. 3 :  the amount of a component in a given area or volume

Examples of concentration in a sentence

  1. All that noise is disturbing my concentration.

  2. The job required her full concentration.

  3. When you're tired it's easy to lose your concentration.

  4. There was a concentration on ethics within the agency.

  5. There is a concentration of wealth in the cities.

  6. He objects to the concentration of power in the hands of a few rich men.

1634

First Known Use of concentration

1634

Other Chemical Engineering Terms


CONCENTRATION Defined for English Language Learners

concentration

play
noun con·cen·tra·tion \ˌkän(t)-sən-ˈtrā-shən, -ˌsen-\

Definition of concentration for English Language Learners

  • : the ability to give your attention or thought to a single object or activity : the ability to concentrate

  • : the act of giving your attention to a single object or activity

  • : a large amount of something in one place


CONCENTRATION Defined for Kids

concentration

play
noun con·cen·tra·tion \ˌkän-sən-ˈtrā-shən\

Definition of concentration for Students

  1. 1 :  close attention to or thought about a subject <There is a concentration on math in the curriculum.>

  2. 2 :  the ability to pay close attention <I lost my concentration when an ambulance drove past.>

  3. 3 :  a large amount of something or a large number of people in one place


Medical Dictionary

concentration

play
noun con·cen·tra·tion \ˌkän(t)-sən-ˈtrā-shən, -ˌsen-\

Medical Definition of concentration

  1. 1:  the act or action of concentrating: asa:  a directing of the attention or of the mental faculties toward a single objectb:  an increasing of strength (as of a solute or a gas in a mixture) or a purifying by partial or total removal of diluents, solvents, admixed gases, extraneous material, or waste (as by evaporation or diffusion)

  2. 2:  a crude active principle of a vegetable especially for pharmaceutical use in the form of a powder or resin

  3. 3:  the relative content of a component (as dissolved or dispersed material) of a solution, mixture, or dispersion that may be expressed in percentage by weight or by volume, in parts per million, or in grams per liter



Seen and Heard

What made you want to look up concentration? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

skillful, artistic, or intricate

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • hot-dog--hot-dog--hot-dog--hot-dog-cat
  • Which of the following words is not a synonym for ‘a young person’?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ