Pronunciation: (sup"lu-men'tl), [key]
2. nonscheduled (def. 2).
3. (of a pleading, an affidavit, etc.) added to furnish what is lacking or missing.
anything that is supplemental: supplementals attached to the bill in committee.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.