1. The act or process of concentrating; the process of becoming concentrated, or the state of being concentrated; concentration.
Concentration of the lunar beams.
Intense concetration of thought.
Sir J. Herschel.
2. The act or process of reducing the volume of a liquid, as by evaporation.
The acid acquires a higher degree of concentration.
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.
(Con*cen"tra*tive) a. Serving or tending to concentrate; characterized by concentration.
A discrimination is only possible by a concentrative act, or act of attention.
Sir W. Hamilton.
1. The quality of concentrating.
2. (Phren.) The faculty or propensity which has to do with concentrating the intellectual the intellectual
(Con"cen*tra`tor) n. (Mining) An apparatus for the separation of dry comminuted ore, by
exposing it to intermittent puffs of air. Knight.
(Con*cen"tric Con*cen"tric*al) , a. [F. concentrique. See Concenter.] Having a common
center, as circles of different size, one within another.
Concentric circles upon the surface of the water.
Sir I. Newton.
Concentrical rings like those of an onion.
(Con*cen"tric), n. That which has a common center with something else.
Its pecular relations to its concentrics.
(Con*cen"tric*al*ly), adv. In a concentric manner.
(Con`cen*tric"i*ty) n. The state of being concentric.
(Con*cen"tu*al) a. [From Concent.] Possessing harmony; accordant. [R.] Warton.
(Con"cept) n. [L. conceptus p. p. of concipere to conceive: cf. F. concept. See Conceit.]
An abstract general conception; a notion; a universal.
The words conception, concept, notion, should be limited to the thought of what can not be represented
in the imagination; as, the thought suggested by a general term.
Sir W. Hamilton.
(Con*cep"ta*cle) n. [L. conceptaculum, fr. concipere to receive. See Conceive.]
1. That in which anything is contained; a vessel; a receiver or receptacle. [Obs.] Woodward.
2. (Bot.) (a) A pericarp, opening longitudinally on one side and having the seeds loose in it; a follicle; a
double follicle or pair of follicles. (b) One of the cases containing the spores, etc., of flowerless plants,
especially of algae.