interhemispheric

adjective

in·​ter·​hemi·​spher·​ic ˌin-tər-ˌhe-mə-ˈsfir-ik How to pronounce interhemispheric (audio)
-ˈsfer-
1
: lying or occurring between the cerebral hemispheres
an interhemispheric subdural hematoma
interhemispheric communication
2
: extending or occurring between the earth's hemispheres (see hemisphere sense 1b)
increased interhemispheric trade
interhemispheric carbon dioxide exchange

Word History

First Known Use

1854, in the meaning defined at sense 1

Time Traveler
The first known use of interhemispheric was in 1854

Browse Nearby Words

Cite this Entry

“Interhemispheric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interhemispheric. Accessed 5 Feb. 2026.

Medical Definition

interhemispheric

adjective
in·​ter·​hemi·​spher·​ic ˈint-ər-ˌhem-ə-ˈsfi(ə)r-ik, -ˈsfer- How to pronounce interhemispheric (audio)
variants also interhemispheral
: extending or occurring between hemispheres (as of the cerebrum)
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster