Translation of "thousandth" - English-Traditional Chinese dictionary

thousandth

noun [ C ] uk us /ˈθaʊ.zə/

one of a thousand equal parts of something

一千分之一(某物一千等份之其一)
a thousandth of a millimetre thick 千分之一毫米厚

(Translation of “thousandth noun” from the Cambridge English-Chinese (Traditional) Dictionary © Cambridge University Press)