Added 9 October 2026
supplemental
/ˌsʌplɪˈmɛntəl/ adjective
adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about supplemental at Wordnik → Where our words come from →
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Functioning in a supporting capacity.
the main library and its auxiliary branches
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Added to complete or make up a deficiency.
produced supplementary volumes
Origin
From supplement + -al.
From Wiktionary, via Kaikki.org (CC BY-SA)