"collateral relatives" is a correct and commonly used term in written English.
It refers to relatives who are not directly in a person's immediate family (such as parents, siblings, or children), but are related through a shared ancestor. This could include aunts, uncles, cousins, and grandparents. Example: "The family reunion was a chance for me to catch up with my immediate family as well as my collateral relatives, such as my cousins and great-aunt."
However, collateral relatives such as cousins, aunts, nephews, and so forth are also family members.
There is a fundamental difference between lineal and collateral relatives, but even direct lineages need not involve progress.
The target people were generated by a 3 (lineal relatives, collateral relatives, and remote relatives) × 2 (close/distant social interactions) design.
In a broader scope, lineages include collateral relatives and their descendants, who share on average certain percentages of one's heritable traits.
Parents, progeny, and full sibs add higher accuracy than collateral relatives (Simm 1998).
These third parties may be constituted by members of the data subject's genetic line or collateral relatives or members of his/her social family.
Spouse Adult children and grandchildren Parents Siblings Grandparents Great grandparents, great grandchildren, or third-degree collateral relative by blood First-degree direct relation by marriage.
The close relative in the preceding paragraph includes the following: Spouse Adult children and grandchildren Parents Siblings Grandparents Great grandparents, great grandchildren, or third-degree collateral relative by blood First-degree direct relation by marriage.
The first is kin selection: individuals favor collateral kin (relatives other than offspring) making it easier for altruism to evolve among members of the same group.
Collateral information from relatives and friends, as well as other health professionals is invaluable to fully explore substance and alcohol issues.
I myself was intent on writing a comparison between the war in Iraq and Afghanistan with the so-called 'war on street crime' announced by Boris Johnson, and others before him, and the relative collateral damage and loss of young lives.
