[1] : The Collaborative International Dictionary of English v.0.48

skull \skull\, n. oe. skulle, sculle, scolle; akin to scot.
   skull, skoll, a bowl, sw. skalle skull, skal a shell, and e.
   scale; cf. g. hirnschale, dan. hierneskal. cf. scale of a
   balance.
   1. anat. the skeleton of the head of a vertebrate animal,
      including the brain case, or cranium, and the bones and
      cartilages of the face and mouth. see illusts. of
      carnivora, of facial angles under facial, and of
      skeleton, in appendix.
      1913 webster

   note: in many fishes the skull is almost wholly cartilaginous
         but in the higher vertebrates it is more or less
         completely ossified, several bones are developed in the
         face, and the cranium is made up, wholly or partially,
         of bony plates arranged in three segments, the frontal,
         parietal, and occipital, and usually closely united in
         the adult.
         1913 webster

   2. the head or brain; the seat of intelligence; mind.
      1913 webster

            skulls that can not teach, and will not learn.
                                                  --cowper.
      1913 webster

   3. a covering for the head; a skullcap. obs.  r.
      1913 webster

            let me put on my skull first.         --beau.  fl.
      1913 webster

   4. a sort of oar. see scull.
      1913 webster

   skull and crossbones, a symbol of death. see crossbones.
      1913 webster
see also:
scale carnivora facial angles facial skeleton scull 
skull and crossbones crossbones 

[2] : The Collaborative International Dictionary of English v.0.48

skull \skull\, n. see school a multitude.
   a school, company, or shoal. obs.
   1913 webster

         a knavish skull of boys and girls did pelt at him.
   --warner.
   1913 webster

         these fishes enter in great flotes and skulls.
                                                  --holland.
   1913 webster
see also:
school 

[3] : WordNet (r) 2.0

skull
     n : the bony skeleton of the head of vertebrates

[4] : Moby Thesaurus II by Grady Ward, 1.0

21 moby thesaurus words for "skull":
   azrael, black death, death, grim reaper, pale death, reaper,
   angel of death, brain box, brainpan, cranium, crossbones,
   epicranium, memento mori, pale horse, pale rider, pericranium,
   sickle of death, skull and crossbones, that fell sergeant,
   that grim ferryman, white cross

Skull >> S Words
Skull, definition of term: Skull
skull_pag1.html

Skull And Cross >> S Words
Skull And Cross, definition of term: Skull And Cross
skull+and+cross_pag1.html