206 COMPARATIVE DENTAL ANATOMY 



eter of which is more than eight-tenths of its long diam- 

 eter. 



Buccal. Toward the cheek. 



Bunodont. Tooth crown supporting tubercles. 



Calcareous. Composed of or containing lime. 



Canine. The first tooth posterior to the intermax- 

 illary suture above and its opponent below. 



Canine Cusp. The buccal cusp of the bicuspid. 



Caniniform. Formed like a canine, — long, slender 

 and pointed. 



Cementum. A tissue resembling bone which covers 

 the outer surface of roots of the teeth. 



Cervical. Of, or pertaining to, a neck. Applied to 

 that portion of the tooth where the enamel and ce- 

 mentum unite. 



Cervix. The neck of the tooth, the portion grasped by 

 the gum, — between the crown and root. 



Chitin. The horny covering of insects and Arthrop- 

 oda, of which the masticating apparatus of the in- 

 vertebrates is often composed. 



Cingule. A small cusp or tubercle on the lingual face 

 of a tooth. 



Cingulum. The ridge or tubercle on the lingual face 

 of a tooth near the gum. 



Coalescence. The structural union of like parts, as 

 the coalescence of the roots of a tooth. 



Complex Crown. A tooth crown composed of two 

 cones (as the bicuspids) or of three or more cones (as 

 the molars). 



Cone. The mechanical element of the tooth crown. 



Cone-shape. Teeth formed of one cone only, — as the 

 teeth of fishes and reptiles and the canines of mammals. 



Coronal. Of or pertaining to a crown. Applied by 

 some to the occlusal surfaces of teeth. 



