8 letters · 8 points in Scrabble
noun a white crystalline insecticide that has low toxicity for mammals; is used in home gardens; extracted from the roots of derris and cube
originFrom Japanese ローテン (rōten) + -one (“ketone”), from Hokkien 蘆藤 /芦藤 (lôo-tîn, “Derris elliptica”).
Etymology from Wiktionary, CC BY-SA 3.0