Porch, The, the name given to the school of Zeno (q.v.), so called from the Arcade in Athens, in which he taught his philosophy, a “many-coloured portico,” as decorated with the paintings of Polygnotus (q.v.).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Popish Plot * Porcupine, Peter