- a climbing composite plant, Mikania guaco, of tropical America.
- its leaves, or a substance obtained from them, sometimes used locally as an antidote for snakebites.
Origin of guaco
Borrowed into English from American Spanish around 1815–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for guaco
But the polygala is quite inodorous, while the guaco gives forth a strong aromatic smell, resembling valerian.The Quadroon
Infusum guaco, L. From the bruised leaves and stems of guaco or huaco (Mikania guaco).
"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.
- any of several tropical American plants whose leaves are used as an antidote to snakebite, esp the climbers Mikania guaco, family Asteraceae (composites), or Aristolochia maxima (A. serpentina), family Aristolochiaceae
- the leaves of any of these plants
C19: from American Spanish