IQ

/ˈaɪ ˌkju/

/aɪˈkju/

A person's IQ is the score they get on a series of problem-solving tests. Your IQ, according to some experts, is a reflection of your intelligence.

If you've ever taken a standardized test to find out how smart you are in comparison to the average person, you probably know what your IQ is. The average IQ for a person your age is 100, so if yours is higher, it means you're unusually intelligent — either that or you're really good at taking tests. IQ is an abbreviation of intelligence quotient, a term invented in 1912 by the German psychologist William Stern.

Definitions of IQ

1. noun

   a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)
   synonyms: I.Q., intelligence quotient

   types:

   adult intelligence

   the average IQ of the adults in a given population

   borderline intelligence

   the minimal IQ required for someone to function normally and independently in the world (without some form of institutional assistance)

   type of:

   ratio

   the relative magnitudes of two quantities (usually expressed as a quotient)