polygonum

British

/ pəˈlɪɡənəm /

noun

any polygonaceous plant of the genus Polygonum, having stems with knotlike joints and spikes of small white, green, or pink flowers See also knotgrass bistort prince's feather

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of polygonum

C18: New Latin, from Greek polugonon knotgrass, from polu- _poly- + -gonon, from gonu knee

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Polygonum multiflorum appears to work differently.

From Science Daily

The review emphasizes that Polygonum multiflorum may actively support hair regeneration.

From Science Daily

A new scientific review suggests that Polygonum multiflorum, a root used in traditional Chinese medicine for more than a thousand years to "blacken hair and nourish essence," could be a promising alternative for managing AGA.

From Science Daily

But San Francisco biotech firm Tinctorium believes it has the answer: genetically engineering bacteria to mirror the way the Japanese indigo plant, Polygonum Tinctorium, makes and holds its colour.

From BBC

Polygonum coccineum was the most prominent plant in the pond edge association.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023