Added 10 October 2026 absorber /əbˈsɔɹ.bɚ/ noun Categories: NatureRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about absorber at Wordnik → Where our words come from → (physics) material in a nuclear reactor that absorbs radiation. Related Words: adsorbentabsorptivesaturabledampercanisterbufferabsorptiondumpercushionbumpershockcushioning Back to today's word