Which term describes a Christian symbol that does not include a figure of Christ?

The term that describes a Christian symbol that does not include a figure of Christ is the cross. The cross represents the instrument upon which Jesus was crucified, but it is typically depicted as a simple shape without the body of Christ. This is significant in Christian theology, as the cross symbolizes not just the sacrifice of Christ, but also His resurrection and the hope of salvation.

While the crucifix, which is a cross with a representation of Jesus, emphasizes His sacrifice, it directly includes the figure of Christ and therefore does not fit the criteria of not having a figure. The chalice is associated with the sacrament of communion but is not a direct symbol of the crucifixion. A crucifer is someone who carries a cross in a religious procession, which again does not refer to a symbol itself. The cross stands out as a purely iconic representation, making it the correct answer in this context.