blackwood noun6 •Any of several species of trees yielding a very dark wood. •African blackwood (Dalbergia melanoxylon), of Africa. •Australian blackwood (Acacia melanoxylon), of eastern Australia.His first act was to spring up into the branches of a tall wattle-tree which grows at the extreme edge of her garden amid a grove of blackwood. — 1951 •Bombay blackwood (Dalbergia latifolia), of India. •logwood, bloodwood (Haematoxylum campechianum), a native to southern Mexico. •The very dark wood of such trees. formsblackwoods