supplemental
UK /ˌsʌplɪˈmɛntəl/ US /ˌsʌpləˈmɛntəl/
adj 3noun 2
Definitions
adj
1
Acting to supplement.
The supplementary bibliography (in Vol. VI) attests to the comprehensiveness of the effort.
2
Appending.
3
Lacking a regular schedule (as in a supplemental airline).
noun
1
Something that supplements or adds to.
2
A requisition or article of legislation that provides additional funding for a program.
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