Breadcrumb Home > Dictionary > Index S sexdecillion: Meaning and Definition of Find definitions for: sex•de•cil•lion Pronunciation: (seks"di-sil'yun), [key] — n., pl. adj. -lions, -lion, —n. a cardinal number represented in the U.S. by 1 followed by 51 zeros, and in Great Britain by 1 followed by 96 zeros. —adj. amounting to one sexdecillion in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sex chromosome sexed TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: recherch Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language