guaiacum gum

guaiac

[gwahy-ak]
noun
1.
Also called guaiacum gum, gum guaiac. a greenish-brown resin obtained from the guaiacum tree, especially from Guaiacum officinale, used in varnishes, as a food preservative, and in medicine in various tests for the presence of blood.
2.
guaiacum ( def 2 ).

Origin:
1550–60; see guaiacum

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
guaiac

noun
hard greenish-brown wood of the lignum vitae tree and other trees of the genus Guaiacum [syn: lignum vitae
WordNet® 3.0, © 2006 by Princeton University.
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