✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

manaca root

noun

man·​a·​ca root ˈman-ə-kə-ˌrüt How to pronounce manaca root (audio)
: the dried root of a shrub (Brunfelsia uniflora) of Brazil and the West Indies that has been used to treat rheumatism and syphilis

called also manaca, vegetable mercury

Browse Nearby Words

Cite this Entry

“Manaca root.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/manaca%20root. Accessed 1 Dec. 2025.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!