D defs.my
Entry 2 senses Webster, 1913

Horsetail

/hôr'-stālˌ/ · Horse·tail · IPA /ˈhɔː(ɹ)s.teɪl/
01 n. A leafless plant, with hollow and rushlike stems. It is of the genus Equisetum, and is allied to the ferns. See Illust. of Equisetum.
  1. 1.
    A leafless plant, with hollow and rushlike stems. It is of the genus Equisetum, and is allied to the ferns. See Illust. of Equisetum.(Bot.) See: Equisetum
  2. 2.
    A Turkish standard, denoting rank.
Phrases & compounds
Shrubby horsetail — See Joint-fir.