hundredth
n. countable B2 Upper Intermediate US //ˈhəndɹədθ// UK //hˈʌndɹədθ// hun·dredth
n. one of one hundred equal parts of something. You use it to talk about a very small fraction, like 1/100.
n. one of one hundred equal parts of a whole. Often used in the context of decimal fractions or ordinal positions.
The runner finished in one hundredth of a second.
The athlete's time was recorded to the nearest hundredth of a second to ensure a fair result.
While the difference in performance was only a fraction of a second, the official timer measured it to the nearest hundredth to determine the winner.
From Middle English hundred (“hundredth”); equivalent to and remodelled after hundred + -th (ordinal suffix). The Old English term was hundtēontigoþa.