[f. L. centum hundred + the termination of million: cf. BILLION.] The hundredth power of a million; a number which would be denoted by 1 followed by 600 ciphers. Hence Centillionth.
1852. Tait’s Mag., XIX. 473/1. There existed not a centillionth of the blessing.
1915. E. L. Larkin, in Pittsburgh Post, 6 Jan., 6/6. Suppose we constantly use numbers that are constantly becoming smaller … past the inconceivable centillionths to the final instant when the number represents a quantity so small that a row of decimals around the earth could not represent it.
