nonterminating decimal

[ non-tur-muh-ney-ting ]
/ nɒnˈtɜr məˌneɪ tɪŋ /

noun Mathematics.

a decimal numeral that does not end in an infinite sequence of zeros (contrasted with terminating decimal).
Also called infinite decimal.

Origin of nonterminating decimal

1905–10; non- + terminating