Definition of "aptitude" []

• An inherent ability, as for learning; a talent. See Synonyms at ability. (noun)
• Quickness in learning and understanding; intelligence. (noun)
• The condition or quality of being suitable; appropriateness. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "By then, the word aptitude, implying that students were being tested for natural fitness or inborn talent, would no longer do."
• "I agree that any genetic differences in aptitude probably predated selective breeding by slave owners."
• "Now, however, "fresh research adds to the debate about gender difference in aptitude for mathematics, including efforts to explain the relative scarcity of women among professors of science, math, and engineering.""