Concentration Con`cen*tra"tion, n. [Cf. F. concentration.] 1. The act or process of concentrating; the process of becoming concentrated, or the state of being concentrated; concentration. [1913 Webster]

Concentration of the lunar beams. --Boyle. [1913 Webster]

Intense concetration of thought. --Sir J. Herschel. [1913 Webster]

2. The act or process of reducing the volume of a liquid, as by evaporation. [1913 Webster]

The acid acquires a higher degree of concentration. --Knight. [1913 Webster]

3. (Metal.) 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. [1913 Webster]

The Collaborative International Dictionary of English. 2000.


Look at other dictionaries:

  • concentration — [ kɔ̃sɑ̃trasjɔ̃ ] n. f. • 1732; de concentrer, d apr. l angl. 1 ♦ Action de concentrer, de réunir en un centre. ⇒ accumulation, assemblage, réunion. La concentration des rayons lumineux au foyer d une lentille. ⇒ convergence. Milit. La… …   Encyclopédie Universelle

  • concentration — con‧cen‧tra‧tion [ˌkɒnsnˈtreɪʆn ǁ ˌkɑːn ] noun [uncountable] ECONOMICS when companies combine to form larger companies, resulting in fewer businesses in an industry; = CONSOLIDATION: • Continental, in a move that underlines the growing… …   Financial and business terms

  • concentration — CONCENTRATION. s. f. Terme didactique. L action de concentrer, ou l effet de ce qui est concentré. La concentration de la chaleur.Concentration, en termes de Chimie, se dit d Une opération, par laquelle on rapproche sous un moindre volume les… …   Dictionnaire de l'Académie Française 1798

  • concentration — I (centralization) noun agglomeration, aggregation, assemblage, collection, combination, compilation, confluence, contemplation, cumulation, density, horde, immersion II (compression) noun absorption, accumulation, agglomeration, amassment,… …   Law dictionary

  • concentration — [n1] consolidation of effort absorption, amassing, application, assembly, bringing to bear, centering, centralization, close attention, clustering, coalescing, combination, compacting, compression, concern, congregation, consolidation,… …   New thesaurus

  • Concentration — Concentration. См. Концентрация. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • Concentration — (v. lat.), 1) das Zusammendrängen nach einer gemeinschaftlichen Mitte hin; 2) (Phys.), das Zusammendrängen von Lichtstrahlen auf einem Punkte od. engem Raum, vgl. Brennpunkt; 3) die Vereinigung wirksamer Theile einer Flüssigkeit in einem… …   Pierer's Universal-Lexikon

  • concentration — 1630s, action of bringing to a center, noun of action from verb CONCENTRATE (Cf. concentrate) (q.v.). Meaning a mass so collected is from 1670s; continuous focus of mental activity is from 1846 …   Etymology dictionary

  • concentration — application, *attention, study Analogous words: intentness, raptness, engrossment, absorption (see corresponding adjectives at INTENT) Antonyms: distraction …   New Dictionary of Synonyms

  • concentration — ► NOUN 1) the action or power of concentrating. 2) a close gathering of people or things. 3) the relative amount of a particular substance contained within a solution or mixture …   English terms dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”