noun, masculine/ka.ut.ʃu/plural: caoutchoucs
rubber (natural and synthetic); plastic; a rubber tree, hevea (Hevea brasiliensis); a rubber fig, a tropical tree often used ornamentally (Ficus elastica); a raincoat
Synonyms: gomme, plastique, imperméable, K-way, bottes de pluie, élastique
Borrowed from Spanish cauchuc (an early variant of caucho), from Quechua kawchu. The final -c was formerly variably pronounced or silent, but is now always silent.