decillion noun.
[dɪ'sɪljǝn] L18.[from DECI- after million, billion, etc.]Orig. (esp. in the UK), the tenth power of a million (10
60). Now usu. (orig.
US), the eleventh power of a thousand (10
33). Also
loosely, an enormous number.
■ decillionth adjective & noun M19. [TahlilGaran] English Dictionary ▲