relationship in Medicine
The condition or fact of being related; connection or association.
Connection by blood or marriage; kinship.
Word Origin and History for relationship
1640s, "sense or state of being related," from relation + -ship. Specifically of romantic or sexual relationships by 1944.
noun
1.
the state of being connected or related
2.
association by blood or marriage; kinship
3.
the mutual dealings, connections, or feelings that exist between two parties, countries, people, etc: a business relationship