Meaning of repeating decimal

repeat'ing dec'imal

Pronunciation: [key]
— Math. Math.
  1. a decimal numeral that, after a certain point, consists of a group of one or more digits repeated ad infinitum, as 2.33333 … . or 23.0218181818 … . Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.