noun Date: circa 1934 a widely used floating-point system in which numbers are expressed as products consisting of a number between 1 and 10 multiplied by an appropriate power of 10 (as in 1.591 × (10) -20 or 1.591 × 10 - 20)
SCIENTIFIC NOTATION
Meaning of SCIENTIFIC NOTATION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012