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Webster 1913 Edition

Noun.

Wood of the jack (

Artocarpus integrifolia

), used in cabinetwork.

Cryptocarya glaucescens (jackwood)

jackwood ‎(usually uncountable, plural jackwoods)

Cryptocarya glaucescens, a rainforest tree of eastern Australia whose bark is dark brown or reddish-brown and often scaly.