Inbreed is a term that refers to the practice of breeding closely related individuals within a species. It can have negative genetic consequences such as increased susceptibility to diseases and deformities in offspring. Synonyms for inbreed include "crossbreed," which refers to the breeding of animals or plants of different breeds or varieties, and "interbreed," which refers to the breeding between different species or subspecies. Other synonyms include "linebreed," which is the practice of breeding within a specific genetic line, and "pedigree breeding," which is the selective breeding of animals with desirable traits to produce offspring with those traits.