Main Entry:

con·cen·tra·tion

Pronunciation:

\ˌkän(t)-sən-ˈtrā-shən, -ˌsen-\

Function:

noun

Date:

1634

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 major2: a concentrated mass or thing3: the amount of a component in a given area or volume