Meaning of equisetoid

eq•ui•se•toid

Pronunciation: (ek"wu-sē'toid), [key]
— n.
  1. any plant of the phylum or division Equisetophyta (or Sphenopsida), including the horsetails and many extinct species of the Carboniferous Period. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.