10 letters · 19 points in Scrabble
noun an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
originBorrowed from French caoutchouc, from Spanish caucho, from Quechua kawchu. Doublet of caucho.
Etymology from Wiktionary, CC BY-SA 3.0