Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration is called
Test cross
A reciprocal cross involves same traits but is carried by sexes opposite to those in the original or first cross.
A back cross is a genetic cross between a hybrid organism and one of the original parental types.
A dihybrid cross is a cross which deals with two pairs of contrasting characters at the same time.