Definition of hiatal
: of, relating to, or involving a hiatus
From the M-W Editors
1909
First Known Use of hiatal
1909
Medical Dictionary
hiatal
play
adjective
hi·a·tal
\hī-ˈāt-əl\
Medical Definition of hiatal
: of, relating to, or involving a hiatus the diaphragm's hiatal opening
Learn More about hiatal
Seen and Heard
What made you want to look up hiatal? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!