caoutchouc

noun

1. (countable, obsolete, uncountable)Latex; natural rubber.

   “Many a passer-by thought Miss Arundel was listening to some subject of most touching interest: his Lordship was only detailing the benefit he derived one wet day from his caoutchouc cloak.”

   “The Automaton can plainly, at the will of the casual spectator, speak any sentence or words, in any language, sing, whisper, laugh, &c.; the organs of articulation are formed of caoutchouc—exactly resembling those appertaing(sic) to humanity....”

   “Resin, pitch, sealing-wax, caoutchouc, sulphur, gutta-percha, and generally all bodies commonly termed resinous, besides a great variety of others, will be found to acquire, after friction, the power of attracting light bodies, and hence will be said, according to a limitation of terms already accepted, to be in an electrized or electrified state .”