Meaning

noun (physics) material in a nuclear reactor that absorbs radiation

originEtymology tree Proto-Indo-European *h₂ep Proto-Indo-European *-o Proto-Indo-European *h₂epó Proto-Italic *ap Latin abder. Latin ab- Proto-Indo-European *srebʰ- Proto-Indo-European *-yeti Proto-Indo-European *-éyeti Proto-Indo-European *srobʰéyeti Proto-Italic *sorβeō Latin sorbeō Latin absorbeō Old French assorbir Middle French absorberder. English absorb Proto-Indo-European *-yósder.…

Etymology from Wiktionary, CC BY-SA 3.0