caoutchouc

[ kou-choo k, kou-chook ]

/ ˈkaʊ tʃʊk, kaʊˈtʃuk /

pure rubber.

Origin of caoutchouc

1765–75; < French < Spanish cauchuc (now obsolete), probably ultimately < an Indian language of lowland tropical South America

It is therefore isomeric with the hydrocarbon of caoutchouc and with that of oil of turpentine.

Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 |Various
This caoutchouc was occasionally called Indian rubber or rubber of twist, and was no doubt one of the numerous fungi.

The Works of Edgar Allan Poe |Edgar Allan Poe
Ordinary glue is dissolved in nitric ether, and a little bit of caoutchouc added.

Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I |Arnold Cooley
Like caoutchouc, gutta percha is able to combine with sulphur, and this vulcanized product has found some commercial applications.

Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 |Various

As it is highly hygroscopic, it must be kept dry, and when required to be transported, must be packed in caoutchouc or bladder.

Cooley's Practical Receipts, Volume II |Arnold Cooley

caoutchouc

/ (ˈkaʊtʃuːk, -tʃʊk, kaʊˈtʃuːk, -ˈtʃʊk) /

another name for rubber 1 (def. 1)

C18: from French, from obsolete Spanish cauchuc, from Quechua