The Collaborative International Dictionary of English v.0.48:

palatine \pal"a*tine\, a. [From Palate.] (Anat.)
   Of or pertaining to the palate; palatal.
   [1913 Webster]

   Palatine bones (Anat.), a pair of bones (often united in
      the adult) in the root of the mouth, back of and between
      the maxillaries.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Palatine \Pal"a*tine\ n. (Anat.)
   A palatine bone.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

palatine \pal"a*tine\, a. [F. palatin, L. palatinus, fr.
   palatium. See Palace, and cf. Paladin.]
   1. Of or pertaining to a palace, or to a high officer of a
      palace; hence, possessing royal privileges.
      [1913 Webster]

   2. Of or pertaining to the Palatinate.
      [PJC]

   3. Of or pertaining to a Palatine[1].
      [PJC]

   Count palatine, County palatine. See under Count, and
      County.

   Palatine hill, or The palatine, one of the seven hills of
      Rome, once occupied by the palace of the C[ae]sars. See
      also Palatine Hill in the vocabulary, and Palace.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Palatine \Pal"a*tine\, n.
   1. One invested with royal privileges and rights within his
      domains; a count palatine. See Count palatine, under 4th
      Count.
      [1913 Webster]

   2. The Palatine hill in Rome.
      [1913 Webster]

WordNet (r) 3.0 (2006):

palatine
    adj 1: relating to or lying near the palate; "palatal index";
           "the palatine tonsils" [syn: palatal, palatine]
    2: of or relating to a count palatine and his royal prerogatives
    3: of or relating to a palace
    n 1: any of various important officials in ancient Rome
    2: (Middle Ages) the lord of a palatinate who exercised
       sovereign powers over his lands [syn: palatine,
       palsgrave]
    3: the most important of the Seven Hills of Rome; supposedly the
       location of the first settlement and the site of many
       imperial palaces
    4: either of two irregularly shaped bones that form the back of
       the hard palate and helps to form the nasal cavity and the
       floor of the orbits [syn: palatine, palatine bone, os
       palatinum]