Equisetum
Pronunciation : Eq`ui*se"tum
Part of Speech : n.;
Etymology : [L., the horsetail, fr. equus horse + seta a thick,, stiff hair, bristle.] (Bot.)
Definition : Defn: A genus of vascular, cryptogamic, herbaceous plants; -- also called horsetails.
Note: The Equiseta have hollow jointed stems and no true leaves. The cuticle often contains siliceous granules, so that one species (E. hyemale) is used for scouring and polishing, under the name of Dutch rush or scouring rush.
pl. Equiseta.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder