|pər, (ˈ)per+ adjective
Etymology: New Latin perfoliata, an herb having leaves pierced by the stem, from Latin per through + foliata, feminine of foliatus foliate — more at for , foliate
1. : having the basal part naturally united around the stem — used of a leaf (as of many honeysuckles) apparently perforated by the stem or petiole
2. : having the terminal joints expanded into flattened plates and encircling the stalk which connects them — used of the antenna of an insect (as a lamellicorn beetle)
• per·foliation ˌpər, ˌper+ noun