noun
: a number expressing the development of a child determined by dividing his maturity age by his chronological age and multiplying by 100 — abbr. DQ
noun
: a number expressing the development of a child determined by dividing his maturity age by his chronological age and multiplying by 100 — abbr. DQ
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012