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Webster 1913 Edition

Adj.

(Anat.)

Situated under, or posterior to, the occiput;

as, the

suboccipital

, or first cervical, nerve

Adj.

Being under the occiput; as the suboccipital nerves.

suboccipital ‎(not comparable)

(anatomy) Situated under, or posterior to, the occiput.
the suboccipital, or first cervical, nerve