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[men-tey-shuh n] /mɛnˈteɪ ʃən/
mental activity.
Origin of mentation
1840-50; < Latin ment- (stem of mēns) mind + -ation Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for mentation
Historical Examples
  • In this field of mentation the activities of memory have their seat.


    William Walker Atkinson
  • All of you admit that there is "Life" there—but about mentation, well, let us see!

    Dynamic Thought William Walker Atkinson
  • A moment's reflection will give you instances of mentation among the plants.

    Dynamic Thought William Walker Atkinson
  • We shall adopt the word "Appetency" to designate the mentation in plant-life.

    Dynamic Thought William Walker Atkinson
  • The Power is raised to a higher Plane of mentation, but is fully operative.

    Dynamic Thought William Walker Atkinson
  • Then comes the stupor, when all ideas disappear and mentation is reduced or absent.

    Benign Stupors August Hoch
  • There are degrees of mentation—intelligence, if you prefer—just as there are degrees of temperature.

    Little Fuzzy

    Henry Beam Piper
  • It is now regarded as belonging to the great subconscious field of mentation, and its explanation must be sought there.

    Your Mind and How to Use It

    William Walker Atkinson
  • In fact, but a small part of even the mentation of Man is performed in the field of consciousness.

    Dynamic Thought William Walker Atkinson
  • Both "Reason" and "Instinct" mean degrees or forms of "mentation," the word we are using.

    Dynamic Thought William Walker Atkinson
British Dictionary definitions for mentation


the process or result of mental activity
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for mentation

"mental function," 1850, from Latin ment- "mind" (see mental) + -ation.

Online Etymology Dictionary, © 2010 Douglas Harper
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