perfoliate Meaning, Definition & Usage

  1. adjective satellite (of a leaf) having the base united around (and apparently pierced by) the stem

WordNet

Per*fo"li*ate adjective
Etymology
Pref. per- + L. folium leaf.
Definitions
  1. (Bot.) Having the basal part produced around the stem; -- said of leaves which the stem apparently passes directory through.
  2. (Zoöl.) Surrounded by a circle of hairs, or projections of any kind.

Webster 1913