n., pl., -Rhos.
A monogram and symbol for Christ, consisting of the superimposed Greek letters chi (Χ) and rho (Ρ), often embroidered on altar cloths and clerical vestments. Also called Christogram.
[CHI1 + RHO, first two letters of Greek Khrīstos, Christ.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.