D defs.my
Entry 1 sense Webster, 1913

Decillion

· De·cil·lion · IPA /dəˈsɪl.i.ən/
01 n. According to the English notation, a million involved to the tenth power, or a unit with sixty ciphers annexed; according to the French and…
  1. 1.
    According to the English notation, a million involved to the tenth power, or a unit with sixty ciphers annexed; according to the French and American notation, a thousand involved to the eleventh power, or a unit with thirty-three ciphers annexed. [See the Note under Numeration.] See: Numeration