con centra'tion. 1

The proce of increasing the amount of a di olved substance relatively to the liquid without adding more of the substance; effected by evaporation, by distillation, or by freezing out the water in the solution. 2. A gathering together of anything that is diffused. [Lat., concentration conception (kon-sep's hun). 1. The act of conceiving or being conceived. The impregnation of the ovum; the first stage of generation on the part of the female. 2. An idea; an hypothesis, false c. Abnormal generation, as of a mole or an abnormal fetus, imperative c. In psychiatry, a general term for a cla of ideas which may appear absurd or improper, but which can not be driven out, and may come into consciousne with compelling force; compulsive ideas. [Lat., concipere, to conceive.]