IDIOPLASM

n. I2d'i2-o-pla2z'm. Lat., idioplaxma (from ifiios. one's own, and jrAoo>ia, anything formed). Ger., Idioplasm a. Of Nageh (1884), a substance of peculiar and complex chemical and molecular constitution which he supposes to be present in cells That of the nucleus (nucleus-idioplasm a) is supposed to be the controlling and active agent in cell-division and in the perpetuation of the species, while that of the cell-body (cyto-idiopiasma) controls the ti ue-change and nutrition of the cell itself. [J.] [s. 431]