10 letters ยท 21 points in Scrabble
noun a lightweight waterproof (usually rubberized) fabric
noun a waterproof raincoat made of rubberized fabric
originFrom Charles Macintosh (1766โ1843), who patented a type of rubberized cloth in 1823. Former trademark. The letter k is a later addition.
Etymology from Wiktionary, CC BY-SA 3.0