Definition of equisetum in English:

equisetum

noun

Botany
  • A plant of a genus that comprises the horsetails.

    • ‘The pond is planted with equisetum, irises, and other water lovers.’
    • ‘Give the child lots of warm herb teas, especially horsetail (equisetum), which cleanses the kidneys.’
    • ‘Horsetails or equisetum can be your nightmare if you have recently laid tarmacadam.’
    • ‘The chief of these is equisetum, known as marestail or horsetail, a plant which rapidly chokes fields of soya if not controlled.’

Origin

Modern Latin, from Latin equus horse + saeta bristle.

Pronunciation:

equisetum

/ˌekwəˈsēdəm/