noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any of a number of plants in the genus Persicaria (formerly Polygonum). uncountable, usually

Etymology

From smart + weed.

Related phrases

Bellard's smartweedBunge's smartweedCarey's smartweedPennsylvania smartweedbellflower smartweedbog smartweeddotted smartweedfield smartweedlongroot smartweedpygmy smartweedstout smartweedswamp smartweed

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.