equisetum

noun eq·ui·se·tum \ˌe-kwə-ˈsē-təm\

plural eq·ui·se·tums or eq·ui·se·ta\-ˈsē-tə\

Definition of EQUISETUM

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New Latin, from Latin equisaetum horsetail plant, from equus horse + saeta bristle

First Known Use: 1761

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