Lewis Short
portĭcus (noun F) : (also heteroclit.
* Acc. plur. PORTICOS, Inscr. Orell. 4043) [porta], a walk covered by a roof supported on columns, a colonnade, piazza, arcade, gallery, porch, portico, = στοά.
* Lit.: omnes porticus commetiri,Plaut. Most. 3, 3, 7: porticum aedificare,id. ib. 3, 2, 69; Cic. Att. 4, 16, 14: inambulare in porticu,id. Rep. 1, 12, 18: viae latae, porticus, etc.,id. ib. 3, 31, 43: porticuum laxitas,Suet. Calig. 37: porticuum,id. Dom. 14; Vitr. 5, 1: in amplis porticibus,Verg. A. 3, 353; cf. id. ib. 2, 528: me porticus excepit,Hor. S. 1, 4, 134; id. Ep. 1, 1, 71: porticus, in quā gestetur dominus,Juv. 7, 178: triplex,Vulg. Ezech. 42, 3.—In the upper story, Dig. 39, 2, 47.
* Transf. *
* The entrance or porch of a tent (poet.): saucii opplent porticus, the porches, Att. ap. Cic. Tusc. 2, 16, 38.
* A weather-board, shed, Col. 9 praef. § 2; 9, 7, 4; 9, 14, 14.
* A long shed or gallery to protect soldiers in sieges, Caes. B. C. 2, 2, 3.
* The Porch or Portico, meaning the school of the Stoics (from στοά, porch, the place where Zeno taught); hence, transf., the Stoic philosophy, the Stoics: Chrysippus, qui fulcire putatur porticum Stoicorum,Cic. Ac. 2, 24, 75; cf. Hor. S. 2, 3, 44: clamat Zeno et tota illa porticus tumultuatur, Cic. Fragm. ap. Aug. contr. Ac. 3, 7; Gell. 12, 5, 10.
Charlton T. Lewis, Charles Short, A Latin Dictionary