Definify.com
Webster 1913 Edition
Ideation
Iˊde-a′tion
,Noun.
The faculty or capacity of the mind for forming ideas; the exercise of this capacity; the act of the mind by which objects of sense are apprehended and retained as objects of thought.
The whole mass of residua which have been accumulated . . . all enter now into the process of
ideation
. J. D. Morell.