Synonyms for Hundredth (same or very similar meaning)
WordNet sense 1 (one part in a hundred equal parts):
one-hundredth, one percent
WordNet sense 2 (the ordinal number of one hundred in counting order):
centesimal
WordNet sense 3 (being or denoting a numerical order in a series):
ordinal
From the ODE community, based on WordNet
add/edit