one-hundred-millionth

== English == === Etymology === From one hundred million +‎ -th. === Adjective === one-hundred-millionth (not comparable) The ordinal form of the number one hundred million. Synonym: hundred-millionth === Noun === one-hundred-millionth (plural one-hundred-millionths) One of one hundred million equal parts of a whole. Synonym: hundred-millionth