- The definition of a Greek cross is a symbol with two bars that bisect at right angles making four equal length arms.
An example of a Greek cross is the symbol used to represent the Red Cross aid agency.
A Greek cross on top of a church.
a cross with four equal arms at right angles
A cross formed by two bars of equal length crossing in the middle at right angles to each other.
(plural Greek crosses)
- (heraldry) A cross with equal-length, orthogonal arms