guaiac

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guaiac

[′gwī‚ak]
(materials)
A resin obtained from the trees Guaiacum santum and G. officinale; soluble in alcohol, ether, and chloroform; used in medicine and varnish.
References in periodicals archive ?
Immunoassays, unlike guaiac tests, are not influenced by diet or by medication use, and they are associated with fewer false-negative and false-positive findings, Dr.
This distinction has been shown in clinical studies to improve compliance from about 25% for guaiac tests to about 40% for immunoassay tests," he said.