Supplemental

//ˌsʌplɪˈmɛntəl// adj, noun

Definitions

Adjective
  1. 1
    Acting to supplement.

    "The supplementary bibliography (in Vol. VI) attests to the comprehensiveness of the effort."

  2. 2
    Appending.
  3. 3
    Lacking a regular schedule (as in a supplemental airline).
Adjective
  1. 1
    added to complete or make up a deficiency wordnet
  2. 2
    functioning in a supporting capacity wordnet
Noun
  1. 1
    Something that supplements or adds to.
  2. 2
    A requisition or article of legislation that provides additional funding for a program.

Etymology

Etymology 1

From supplement + -al.

Etymology 2

From supplement + -al.

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