logwood noun. 
['lɒgwʊd] L16.[from LOG noun1 + WOOD noun1.]1.  (The heartwood of) a Central American and W. Indian leguminous tree, 
Haematoxylum campechianum. 
L16.2.  An extract of this wood, used for colouring and dyeing. 
L19.  [TahlilGaran] English Dictionary ▲