Definition of black root
1
: any of several plants or their dark-colored roots: such as
a
: a perennial plant (Pterocaulon undulatus) of the southern U.S. that has large black rootstocks
b
: culver's root
d
: a common comfrey (Symphytum officinale) with the upper part of the stem and inflorescence densely hispid
2
: any of several plant diseases characterized by dark discoloration of roots: such as
b
: a disease of radishes, beets, and sugar beets caused by fungi (genus Aphanomyces) and producing brown or black lesions on the roots, deformation of the roots, and a damping off of seedlings
Learn More About black root
Statistics for black root
Look-up Popularity
Cite this Entry
“Black root.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/black%20root. Accessed 28 Jan. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Name that Thing: Flower Edition
-
- Name that flower
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share black root