Translation guide
Outbreeding refers to reproduction between distantly related individuals, often contrasted with inbreeding. In Japanese, this concept is expressed through technical terms in biology and genetics, as well as more general phrases describing marriage or mating outside a group.
The scientific concept of mating between genetically distant individuals to increase heterozygosity.
The standard biological term for outbreeding, referring to mating between unrelated or distantly related individuals.
Outbreeding increases genetic diversity.
A shorter term for outbreeding, often used in genetics and breeding contexts.
Outbreeding prevents inbreeding depression.
Katakana loanword from English, used in scientific contexts.
Outbreeding improves the fitness of the population.
The practice of marrying or mating outside one's social, ethnic, or familial group.
Anthropological term for exogamy, the custom of marrying outside a specific group.
Exogamy is traditionally practiced in that tribe.
A general phrase meaning 'marriage with outsiders', used in everyday language.
Marriages with outsiders are increasing.
A more literal phrase meaning 'mating with a different group', used in biological or sociological discussions.
In Japanese, outbreeding (異系交配) is often contrasted with inbreeding (近親交配 or 近交). Inbreeding depression is 近交弱勢, while outbreeding enhancement is sometimes called 雑種強勢 (heterosis).
Inbreeding can cause harmful recessive genes to be expressed, but outbreeding prevents that.
For everyday conversation about marrying outside one's community, use 外部との結婚 or 国際結婚 (international marriage) if applicable. 族外婚 is strictly anthropological.
Mating with different groups causes gene flow.