Dictionary.com
Thesaurus.com

nonterminating decimal

American  
[non-tur-muh-ney-ting des-uh-muhl] / nɒnˈtɜr məˌneɪ tɪŋ ˈdɛs ə məl /

noun

Mathematics.
  1. a decimal numeral that does not end in an infinite sequence of zeros (terminating decimal ).


Etymology

Origin of nonterminating decimal

1905–10; non- + terminating ( def. )