9 letters · 24 points in Scrabble
noun hazard to humans or the environment resulting from biological agents or conditions
noun any bacterium or virus or toxin that could be used in biological warfare
originEtymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βῐ́ος (bĭ́os) Ancient Greek βῐο- (bĭo-)der. English bio- English hazard English biohazard From bio- + hazard.
Etymology from Wiktionary, CC BY-SA 3.0