A small tower built at 1/2 mile intervals between the milecastles on Hadrian's Wall. Also a tower as also used in turris ambulatoria, which was a mobile siege tower.
Turris is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids. The generally large shells are variegated with spots. The fusiform shell is turriculated with a long, sharp spire. The aperture is ovate. The columellar lip is smooth. The outer lip is separated with a narrow profound sinus from the suture rather than d...Found on http://en.wikipedia.org/wiki/Turris
Tower.Found on http://www.encyclo.co.uk/local/20764
No exact match found