English edit

Etymology edit

quintillion +‎ -th

Pronunciation edit

  • IPA(key): /kwɪnˈtɪl.i.ənθ/
  • Audio (US):(file)

Adjective edit

quintillionth (not comparable)

  1. The ordinal form of the number one quintillion.

Noun edit

quintillionth (plural quintillionths)

  1. The person or thing in the quintillionth position.
  2. One of a quintillion equal parts of a whole.