13 letters · 20 points in Scrabble
adjective capable of being decomposed by e.g. bacteria
originEtymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βῐ́ος (bĭ́os) Ancient Greek βῐο- (bĭo-)der. English bio- English degrade Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English degradable English biodegradable From bio- + degradable.
Etymology from Wiktionary, CC BY-SA 3.0