Definition of "mental ability" []

• The power to learn or retain knowledge; in law, the ability to understand the facts and significance of your behavior (noun)

WordNet. Princeton University. 2010.

• "There were some interesting topics too which ensured some sort of debate like the comparative study of general mental ability of vegetarian and non-vegetarian school-going players by Dr. Quadri Syed Javeed, Dr.S. S. Shaik and Mrs N.A. Gani Khan and the other one by Dr.R. Aravind Kumar - a comparative study of academic achievement between players and non-players."
• "It is published at length in Julian Hawthorne's biography of his father, and is unique for the insight which it affords as to Hawthorne's mental ability in this direction."
• "Joe-Jim Gregory was almost as nearly unique in his -- or their -- mental ability as he was in his bodily construction."