CONCENTRATIVE
Con*cen"tra*tive, a.
Defn: Serving or tending to concentrate; characterized by
concentration.
A discrimination is only possible by a concentrative act, or act of
attention. Sir W. Hamilton.
CONCENTRATIVENESS
Con*cen"tra*tive*ness, n.
1. The quality of concentrating.
2. (Phren.)
Defn: The faculty or propensity which has to do with concentrating the intellectual the intellectual powers. Combe.
CONCENTRATOR
Con"cen*tra`tor, n. (Mining)
Defn: An apparatus for the separation of dry comminuted ore, by exposing it to intermittent puffs of air. Knight.
CONCENTRIC; CONCENTRICAL
Con*cen"tric, Con*cen"tric*al, a. Etym: [F. concentrique. See
Concenter.]
Defn: 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. Arbuthnot.