noun, plural gua·cos.
Origin of guaco
Examples from the Web for guaco
Infusum guaco, L. From the bruised leaves and stems of guaco or huaco (Mikania guaco).
But the polygala is quite inodorous, while the guaco gives forth a strong aromatic smell, resembling valerian.The Quadroon|Mayne Reid
"Guaco" and "huaco" are the same word, the intensity of the aspirate varying among different peoples.The Romance of Natural History, Second Series|Philip Henry Gosse
A preparation of the guaco plant is highly esteemed on the Spanish main as an antidote against bites of snakes of all kinds.