- any of certain horsetails, especially Equisetum hyemale, used for scouring and polishing.
Origin of scouring rush
First recorded in 1810–20
Also called Dutch rush.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any of several horsetails, esp Equisetum hyemale, that have rough-ridged stems and were formerly used for scouring and polishing