A diallel cross is a type of genetic experiment that involves crossing different organisms in a set and systematic manner. This method is commonly used in plant breeding to select for desirable traits. While the term "diallel cross" is commonly used, there are other ways to refer to this technique. Some synonyms for the phrase include "full diallel analysis," "complete diallel mating design," and "all possible crosses within a set of individuals." Regardless of what it's called, the diallel cross remains a valuable tool for researchers and breeders looking to improve the genetic properties of various organisms.