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1. (n.) guaiac
a greenish brown resin obtained from the guaiacum tree, esp. from Guaiacum officinale, used in varnishes, as a food preservative, and as a medical test for the presence of blood in excreted matter.
Etymology: (1550–60; see guaiacum)
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| Definition of 'guaiac' |
Princeton's WordNet |
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1. (noun) lignum vitae, guaiac, guaiacum
hard greenish-brown wood of the lignum vitae tree and other trees of the genus Guaiacum
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Webster Dictionary |
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1. (adj) guaiac
pertaining to, or resembling, guaiacum
2. (noun) guaiac
guaiacum
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| Definition of 'guaiac' |
U.S. National Library of Medicine |
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1. guaiac
Resin from wood of certain species of GUAIACUM. It is used as clinical reagent for occult blood.
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Definitions of guaiac 
