Iq (noun)

1. A number used to express the relative intelligence of a person, obtained by dividing the mental age as determined by a standardized test by the chronological age and multiplying by 100.
2. A measure of a person's cognitive abilities and potential in relation to those of others of the same age.

Origin:

Abbreviation of intelligence quotient.

Examples:

1. The average IQ is 100.
2. A score above 130 is considered to be in the top 2% of IQ scores.
3. An IQ of 70 or below is considered to be low.
4. Some experts argue that IQ tests are not an accurate measure of intelligence.
5. A person's IQ score can change over time.