quebracho/kɪˈbɹɑːt͡ʃəʊ/EtymologyBorrowed from Spanish quebracho, from quebrar (“to break”) + hacha (“axe”).nounAny of several trees of southern South America with produce very hard wood rich in tannin, especially those of the genus Schinopsis.The wood of these trees.The bark of these trees, formerly used in treating fever.A tannin extracted from these trees.