GLOSSARY 



Acrodont. Having teeth ankylosed on parapets of 

 bone on the edges of the jaw (as found in some lizards). 



Alveolar. Pertaining to the alveoli or sockets of the 

 teeth ; as alveolar arch, alveolar border. 



Alveolus (PL Alveoli). The socket of a tooth. 



Anisognathous. Having the upper molars unlike the 

 lower in size and pattern. 



Ankylosis. The growing together of two bones or 

 parts of bones. Applied to the union of teeth to the jaw- 

 bone. 



Arch. The curve made by the upper and lower teeth. 



"Aristotle's Lantern." The dental apparatus of 

 Echinus. 



Asymmetry. Absence of symmetry. 



Axial. Term applied to all surfaces, walls, and lines 

 parallel to the long axis of a tooth. 



Basal. Of, pertaining to, situated at, or forming the 

 base. 



Bell-crowned. Applied to a tooth crown which is 

 largest at the occlusal surface and tapers toward the 

 cervix. 



Biscuspid. The premolar of man (a tooth with two 

 cusps). 



Bifurcated. Divided in two in fork form, as the roots 

 of the inferior first and second molars, or in many cases 

 of the superior first biscuspid of man. 



Brachy cephalic. Having a skull the transverse diam- 



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