Actually the term "second cousin" does not have a concrete meaning. It can mean ...

jb1991 on July 12, 2016 | parent | context | favorite | on: Friends are as genetically similar as fourth cousi...

Actually the term "second cousin" does not have a concrete meaning. It can mean a true second cousin, or it can also mean a generation removed from a first cousin. The "once removed" terminology was introduced to compensate for this ambiguity.