Definify.com
Webster 1913 Edition
Spinous
Spi′nous
,Adj.
1.
Spinose; thorny.
2.
Having the form of a spine or thorn; spinelike.
Spinous process of a vertebra
(Anat.)
, the dorsal process of the neural arch of a vertebra; a neurapophysis.
Webster 1828 Edition
Spinous
SPI'NOUS
,Adj.