spi·na·lis
spī-ˈnā-ləs 
spi-ˈna-lis
spi-ˈna-lis
plural spinales
-(ˌ)lēz
: the most medial division of the sacrospinalis situated next to the spinal column and acting to extend it or any of the three muscles making up this division:
c
spinalis
2 of 2
see medulla spinalis
Cite this Entry
“Spinalis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/spinalis. Accessed 4 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share