noun, plural eq·ui·se·tums, eq·ui·se·ta [ek-wuh-see-tuh] /ˌɛk wəˈsi tə/.
any plant of the genus Equisetum, comprising the horsetails.
Origin of equisetum
1820–30; < New Latin; Latin equisaetum, equivalent to equi-, combining form of equus horse + saet(a) bristle + -um neuter noun suffixRelated formseq·ui·se·tic, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for equisetum
Historical Examples of equisetum
At about 5,000 feet I first saw horsetails (Equisetum), very like our own species.
Insipid milk, and lead-coloured butter, from equisetum fluviatile.
In this connection his figuring young plants of Equisetum attached to prothalli is interesting.
Near the shore grew the Naked Horse-tail (Equisetum hyemale), having a shoot springing from its root on each side.
The corn-fields here produce Echioides (Lycopsis arvensis), and the woods the most slender kind of Equisetum (sylvaticum).
British Dictionary definitions for equisetum
noun plural -tums or -ta (-tə)
any tracheophyte plant of the genus Equisetum, which comprises the horsetails
Word Origin for equisetum
C19: New Latin, changed from Latin equisaetum, from equus horse + saeta bristle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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