interindividual
adjective
in·ter·in·di·vid·u·al ˌin-tər-ˌin-də-ˈvi-jə-wəl 
-ˈvij-wəl,
-ˈvi-jəl,
-ˈvi-jü-əl
variants or inter-individual
: taking place between or involving individuals
interindividual variations
interindividual communication
Word History
First Known Use
1838, in the meaning defined above
Medical Definition
interindividual
adjective
in·ter·in·di·vid·u·al -ˌin-də-ˈvij-(ə-)wəl, -ˈvij-əl
: involving or taking place between individuals
interindividual conflicts