0 abbreviation for intelligence quotient: a measure of someone's intelligence found from special tests:
Children with very low/high IQs often have problems at school.
IQ is just one measure of intelligence.
1 abbreviation for intelligence quotient (= a person’s level of intelligence measured by tests):
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.