plural of concentration

present participle of concentrate

In a concentric manner

The state or quality of being concentric.

The state or quality of being concentrative.

One who concentrates. / (telecommunications) A hub. / (mining) An apparatus for the separation of dry comminuted ore, by exposing it to intermittent puffs of air.

plural of concentrator

present participle of concentre

simple past tense and past participle of concentre

Characterised by concentration.