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Medical Term:


Pronunciation: gwi'ak

Definition: The resin of Guaiacum officinale or G. sanctum (family Zygophyllaceae); a nauseant, diaphoretic, stimulant, and reagent used in testing for occult blood.

Synonym(s): guaiac gum

[Sp. guayaco, imitating the native Carib name]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.