noun, plural que·bra·chos [key-brah-chohz; Spanish ke-vrah-chaws] /keɪˈbrɑ tʃoʊz; Spanish kɛˈvrɑ tʃɔs/.
Examples from the Web for quebracho
In Misiones there are two types of forest, which differ a good deal from each other, while neither resembles the quebracho forest.The Argentine Republic|Pierre Denis
The material is chiefly pine bark, but some oak bark, valonia, myrabs and quebracho are also used.Animal Proteins|Hugh Garner Bennett
But a certain variety of the quebracho tree is much more valuable for another purpose, viz: the tanning of leather.
Here grows the quebracho, which means the break-axe; so it is a very hard wood.The Amazing Argentine|John Foster Fraser
A quebracho log will not float upon water, but will sink like iron.