n., pl., -ni·i (-nē-ī').
Either of two muscles of the back of the neck, extending from the upper vertebrae to the base of the skull, that rotate and extend the head and neck.
[New Latin splēnius, from Latin splēnium, patch, plaster (from its shape), from Greek splēnion, from splēn, spleen.]
splenial sple'ni·al (-nē-əl) adj.




