in·​ter·​ob·​serv·​er ˌin-tər-əb-ˈzər-vər How to pronounce interobserver (audio)
variants or less commonly inter-observer
: occurring between or involving two or more observers
The degree of agreement between two or more independent observers in the clinical setting constitutes interobserver reliability and is widely recognized as an important requirement for any behavioral observation procedure …Richard A. Marafiote

Word History

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of interobserver was in 1940

Dictionary Entries Near interobserver

Cite this Entry

“Interobserver.” Dictionary, Merriam-Webster, Accessed 7 Jun. 2023.

Medical Definition


in·​ter·​ob·​ser·​ver ˌint-ər-əb-ˈzər-vər How to pronounce interobserver (audio)
: occurring between individuals performing the same and especially a visual task
interobserver variability in the interpretation of coronary angiogramsFrank Vieras et al.
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