quat•tu•or•de•cil•lionˈkwɒt uˌɔr dɪˈsɪl yən, ˈkwɒt yu-(n.)(pl.)-lions; -lion

1. (n.)a cardinal number represented in the U.S. by 1 followed by 45 zeros, and in Great Britain by 1 followed by 84 zeros.

2. (adj.)amounting to one quattuordecillion in number.

Origin of quattuordecillion:

1900–05; < L quattuordec(im) fourteen (quattuorfour+-decim, comb. form of decemten ) +-illion (as in million)