/seks'di sil"yeuhn/ , n. , pl. sexdecillions , ( as after a numeral ) sexdecillion , adj.
n.
1. 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.
2. amounting to one sexdecillion in number.
[ 1935-40; SEX- + DECILLION ]