octillion

[ ok-til-yuhn ]

noun

, plural oc·til·lions, (as after a numeral) oc·til·lion.

1. a cardinal number represented in the U.S. by 1 followed by 27 zeros, and in Great Britain by 1 followed by 48 zeros.

adjective

1. amounting to one octillion in number.

octillion

/ ɒkˈtɪljən /

noun

1. (in Britain and Germany) the number represented as one followed by 48 zeros (10 ⁴⁸)
2. (in the US, Canada, and France) the number represented as one followed by 27 zeros (10 ²⁷)

Derived Forms

• ocˈtillionth, adjective

Other Words From

• oc·tillionth noun adjective

Word History and Origins

Origin of octillion¹

1680–90; < French, equivalent to oct- oct- + -illion, as in million

Word History and Origins

Origin of octillion¹

C17: from French, on the model of million