BT Nid 20a(38) :דארא מציעא אטרפא מציעא‏ : the middle row (of the crocus and) the middle leaf (of it)
See the entire entry for ˀṭrp n.m. leaf; flap

BT Nid 20a(38) :דתלתא תלתא טרפי הויין‏ :
See the entire entry for ṭrap̄, ṭarpā n.m. leaf; lobe