guaco /gwäˈkō/

1. Any of several tropical American plants reputedly antidotal against snakebite, esp species of Mikania (climbing composites), and of Aristolochia
2. The medicinal substance obtained from them

• photocells
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• photochromic
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• photochromism
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• photochromy
• photocoagulation
• photocomposition
• photoconducting
• photoconductive
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• photocopiable
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• photocopier
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