Adjacent Words

Polygonum definitions

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Webster's 1828 Dictionary

POLYG'ONUM
POL'YGON, n. [Gr. many, and knee or knot.] Knotgrass, a genus of plants so names from the numerous joints in the stem.

WordNet (r) 3.0 (2005)

n
1: diverse genus of herbs or woody subshrubs of north temperate regions [syn: Polygonum, genus Polygonum]

Merriam Webster's

noun Etymology: New Latin, from Greek polygonon knotgrass, from poly- + gony knee — more at knee Date: circa 1706 any of a genus (Polygonum) of herbs of the buckwheat family with a prominent tubular sheath around the base of each petiole, thickened nodes, and flowers that are solitary and axillary or in spiked racemes — called also knotweed

Oxford Reference Dictionary

n. any plant of the genus Polygonum, with small bell-shaped flowers. Also called KNOTGRASS, KNOTWEED. Etymology: mod.L f. Gk polugonon

Webster's 1913 Dictionary

Polygonaceous Pol`y*go*na"ceous, a. [See Polygonum.] (Bot.) Of or pertaining to a natural order of apetalous plants (Polygonace[ae]), of which the knotweeds (species of Polygonum) are the type, and which includes also the docks (Rumex), the buckwheat, rhubarb, sea grape (Coccoloba), and several other genera.

Webster's 1913 Dictionary

Polygonum Po*lyg"o*num, n. [NL., fr. Gr. ? a kind of plant; poly`s many + go`ny the knee, a joint of a plant. So called in allusion to the numerous joints.] (Bot.) A genus of plants embracing a large number of species, including bistort, knotweed, smartweed, etc.