CATHETUS1 (Gr. shOros, a perpendicular line), in architecture the eye of the volute2, so termed because its position is determined, in an Ionic or voluted capital, by a line let down from the point in which the volute generates.
In general, a cathetus is a line falling perpendicularly on a surface or another line. A leg of a right triangle (i.e., a side adjacent the right angle) is also known as a cathetus (plural: catheti).
References
edit1. CATHETUS at LoveToKnow. "CATHETUS." LoveToKnow 1911 Online Encyclopedia. © 2003, 2004 LoveToKnow. http://42.1911encyclopedia.org/C/CA/CATHETUS.htm
2. Denise Andrey and Mirko Galli, "Geometric Methods of the 1500s for Laying Out the Ionic Volute", Nexus Network Journal, vol. 6 no. 2 (Autumn 2004), http://www.nexusjournal.com/AndGal.html
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Moving a category
editHi, I see stonemasonary is spelt stonemasonry, how does one move a category? Gregorydavid 12:14, 14 July 2007 (UTC)