Added 10 October 2026
luminesce
/ˌlumɪˈnɛs/ verb
verb Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about luminesce at Wordnik → Where our words come from →
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To give off light, including in the invisible electromagnetic radiation frequencies, or become luminescent.
Phosphorus will only begin to luminesce at a certain small pressure of oxygen.
Origin
Back-formation from luminescent.
From Wiktionary, via Kaikki.org (CC BY-SA)