concentration

== English == === Etymology === From New Latin concentrātiō (“(1550) action or an act of coming together at a single place; (1659) extraction or separation of one or more of the metals present in an alloy”). Compare French concentration, Spanish concentración, Italian concentrazione (last quarter of 16th century). Equivalent to concentrate +‎ -ion. By surface analysis, con- +‎ centre +‎ -ate +‎ -ion. === Pronunciation === (Received Pronunciation) IPA(key): /ˌkɒn.sənˈtɹeɪ.ʃən/ (General American) IPA(key): /ˌkɑn.sənˈtɹeɪ.ʃən/ Rhymes: -eɪʃən Hyphenation: con‧cen‧tra‧tion === Noun === concentration (usually uncountable, plural concentrations) The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated. The direction of attention to a specific object. The act, process or product of reducing the volume of a liquid, as by evaporation. The act or process of removing the dress of ore and of reducing the valuable part to smaller compass, as by currents of air or water. A field or course of study on which one focuses, especially as a student in a college or university. The proportion of a substance in a whole. (physical chemistry) The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm)) The matching game pelmanism. ==== Coordinate terms ==== (course of study): major, minor ==== Derived terms ==== ==== Translations ==== === See also === salinity === References === === Further reading === Concentration (disambiguation) on Wikipedia.Wikipedia Concentration (chemistry) on Wikipedia.Wikipedia == French == === Etymology === First attested 1732, from concentrer +‎ -ation. === Pronunciation === IPA(key): /kɔ̃.sɑ̃.tʁa.sjɔ̃/ === Noun === concentration f (plural concentrations) concentration (mental state of being concentrated) concentration (quality of being concentrated) ==== Derived terms ==== camp de concentration ==== Descendants ==== → Romanian: concentrație → Turkish: konsantrasyon === Further reading === “concentration”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012 == Interlingua == === Noun === concentration (plural concentrationes) concentration (state or degree of being concentrated)