posterior inferior iliac spine
noun
: a projection on the posterior margin of the ilium that is situated below the posterior superior iliac spine and is separated from it by a notch
called also posterior inferior spine
Cite this Entry
“Posterior inferior iliac spine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/posterior%20inferior%20iliac%20spine. Accessed 30 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share