ˈkēˈrō, ˈkī- noun
( -s )
Usage: usually capitalized C&R
Etymology: chi + rho, names of the 1st two letters of Greek Christos Christ
: a Christian monogram and symbol formed of the first two letters, chi (Χ) and rho (Ρ), of the Greek word for Christ — called also chrismon, christogram ; compare labarum