from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The ratio of tested mental age to chronological age, usually expressed as a quotient multiplied by 100.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A score derived from one of several different standardized tests attempting to measure intelligence.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. 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)
A calque of German Intelligenzquotient. (Wiktionary)