supplementation

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noun

The act of supplementing

Similar
supplementsubjunctionsubjoining
Less commonScrabble 21
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Meanings

nounsupplementation (countable and uncountable, plural supplementations)

plural supplementations

  1. countableuncountableThe act of supplementing
  2. countableuncountableSomething added as a supplement

Synonyms & antonyms

nouna quantity added (e.g. to make up for a deficiency)

Similar
supplement
Broader
increaseincrement

nounthe act of supplementing

Similar
subjunctionsubjoining
Broader
expansionexpanding upon
Also see
subjunctionsupplement

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From supplement + -ation.

Full word history & related roots →
Cite this entry
APA

supplementation. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/supplementation

MLA

“supplementation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/supplementation. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “supplementation,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/supplementation.

Source: supplementation on Wiktionary, CC BY-SA 4.0.