a tropical Asian zingiberaceous plant, Curcuma longa, having yellow flowers and an aromatic underground stem the powdered stem of this plant, used as a condiment and as a yellow dye 
WordReference Random House Learner's Dictionary of American English © 2025
tur•mer•ic /ˈtɜrmərɪk/USA pronunciation  
n. 
WordReference Random House Unabridged Dictionary of American English © 2025- Food[uncountable] a powder prepared from the root of an Asian plant of the ginger family, used as a spice.
 - Plant Biology[countable] the plant itself.
 
tur•mer•ic 
(tûr′mər ik),USA pronunciation n. 
- Plant Biologythe aromatic rhizome of an Asian plant, Curcuma domestica (or C. longa), of the ginger family.
 - a powder prepared from it, used as a condiment, as in curry powder, or as a yellow dye, a medicine, etc.
 - Plant Biologythe plant itself.
 - Plant Biologyany of various similar substances or plants.
 
- Medieval Latin terra merita merited earth, unexplained name for curcuma
 - earlier tarmaret 1530–40
 
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'turmeric' also found in these entries (note: many are not synonyms or translations):