internuclear

adjective

in·​ter·​nu·​cle·​ar ˌin-tər-ˈnü-klē-ər 

-ˈnyü-,

 nonstandard  -kyə-lər

: situated or extending between nuclei

At small internuclear separations, well within the electrons' orbiting radii, the electrons cannot distinguish between the two nuclear centers.

—Jack S. Greenberg and Walt Greiner

Word History

First Known Use

1842, in the meaning defined above

Medical Definition

internuclear

adjective

in·​ter·​nu·​cle·​ar ˌint-ər-ˈn(y)ü-klē-ər 

: situated or occurring between atomic or biological nuclei