The AI-powered English dictionary
plural trilliards
(UK, Australia, dated, rare) One thousand long scale trillions, or one short scale sextillion; equal to 1021 (1 followed by twenty-one 0s). quotations
We read of milliards, and even trilliards, of roubles, marks, francs and dollars, but we do not comprehend them in the sense of visualising and retaining a clear-cut picture of what the figures really imply.
1922, Industrial Peace, volume 10, London: St. Catherine Press, page 167
Power of ten ...UK, France (n rule) million billion billiard trillion trilliard
2003, François Cardarelli, Column in a table, Encyclopaedia of Scientific Units, Weights, and Measures: Their SI Equivalences and Origins