The word "hundredth" refers to something that is in its hundredth position or place. It can also be used as an adjective to describe something that is related to, or represents the number 100.
A couple of hundredths of degrees in the US rankings and no change in anything that could be considered climatically important (specifically long term trends). (realclimate.org)
For the seemingly hundredth time in her career, Tilda Swinton plays an over-the-top character, complete with dramatic makeup and attire. (lights-camera-jackson.com)
Recently recognized was the three - hundredth anniversary of the birth of the Scottish philosopher David Hume. (firstthings.com)