Definition of IQ
(Entry 1 of 2)
1
: a number used to express the apparent relative intelligence of a person: such as
a
: a score determined by one's performance on a standardized intelligence test relative to the average performance of others of the same age
b
: the ratio of the mental age (as reported on a standardized test) to the chronological age multiplied by 100
2
: proficiency in or knowledge of a specified subject
nobody questioned his hockey IQ
iq
abbreviationDefinition of iq (Entry 2 of 2)
the same as
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Merriam-Webster unabridged
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The first known use of IQ was in 1920
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