â–¸ noun: the process of thinking (especially thinking carefully)

"I may as well explain my terms at this place and time. In the first place I use the term “Mentation,” in the sense of “Mental activity”; the term being derived from the Latin word mentis, meaning “the mind”; and the suffix “ation”; meaning “action.” So “Mentation” means “mental activity.” From Mentation we derive Mentative, or “relating to mental activity”; Mentate, or “to manifest mental activity”; etc., etc. From Mentation, also, I derive the term, “Telementation,” which so far as I know, was originally coined by me several years ago. The word is derived from the Greek word, tele, meaning “far off ”; and the word “mentation,” above explained. “Telementation” means “mental activity at a distance,” or Mentation exerted over space,” or “long‐range mental influence,” etc. I have been led to the coining of this new term designed to take the place of “telepathy,” for the reason that the latter term is improper and misleading. “Telepathy,” according to its root‐words, really means “to suffer at a distance,” or the “feeling of the pain of another,” the suffix “pathy,” being derived from the Greek word meaning “to suffer.” It may be used properly in connection with the sympathetic transference of pain, or disease, or similar mental state, but its use otherwise is improper. It is being discarded by the best scientific authorities, who prefer the term “Thought Transference,” etc. I have thought it advisable to use the term “Telementation” in this connection, believing that it meets the requirements of the case better than any other term of which I have any knowledge. I expect it to come into general use before long." Chapter III - Mentative Induction

See Also

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Chapter X - Examples of Dynamic Mentation
Chapter III - Mentative Induction
clairvoyance
Mind Power
Remote Viewing
Telementation
Thinking
Volition
Will