12 letters · 16 points in Scrabble
noun a salt of boric and silicic acids
originEtymology tree Middle Persian *bōragbor. Arabic بَوْرَق (bawraq)der. Medieval Latin boraxder. Anglo-Norman boreisbor. Middle English boras English borax English boro- English silicate English borosilicate From boro- + silicate.
Etymology from Wiktionary, CC BY-SA 3.0