GLOSSARY 207 



Coronoid. Having a crown-like form. 



Crests. The sinuous cusps or enamel ridges on the 

 grinding faces of the molars of herbivora. 



Crown. That portion of the tooth which is exposed 

 above the gum. 



Crucial. Having the form of a cross. 



Cusp. A sharp eminence on the occlusal surface of 

 a tooth crown. 



Cuspid. A tooth with one point or cusp, — the canine. 



Cuspidate. Formed of or like one or more cusps. 



Deciduous. Liable to be shed at periodical or certain 

 stages of growth ; as antlers, hair, teeth. Applied to the 

 first series of teeth of young mammals, which are re- 

 placed by the permanent set. 



Dens SapienticE. The third molar, the wisdom tooth 

 of man. 



Dental. Referring or pertaining to the teeth. 



Denticles. Shapeless calcareous bodies which serve 

 the purposes of teeth. 



Denticulate. Furnished with small teeth. 



Dentigerous. Bearing or supporting teeth, — supplied 

 with teeth; also containing teeth, as a dentigerous 

 cyst. 



Dentin. The calcified tissue that forms the main por- 

 tion of the teeth. 



Dentinal. Referring to the dentin. 



Dentinoid. Having the form of a tooth. 



Dentition. The eruption of the teeth. 



Deuterocone. The mesio-buccal cone of the upper 

 premolar. 



Deuteroconid. The mesio-buccal cone of the lower 

 premolar. 



Diastema. A space between the teeth, — especially the 

 space between the upper lateral and canine into which 



