Citations:cæmentum

Noun: antiquated form of

 * 1842, Proceedings of the Geological Society of London, R. and J. E. Taylor; Volume III, №. 60, page #27:
 * In the Dolphins which have simple conical teeth like the higher reptiles, the crown is also covered with enamel and the base with cæmentum. But in the Cachalot and Dugong the whole of the teeth is covered with cæmentum.  In the Dugong this external layer presents the same characteristic radiated purkingian corpuscles or cells as in the cæmentum of the human teeth, and those of other animals ; but the cæmentum of the Dugong differs from that of the Pachyderms and Ruminants in being traversed by numerous calcigerous tubes, the corpuscles or cells being scattered in the interstices of these tubes.  Now the crowns of the teeth of the Basilosaurus evidently exhibit in many parts a thin investing layer of a substance distinct from the body or ivory of the tooth, and the microscopic examination of a thin layer of this substance proves it to possess the same characters as the cæmentum of the crown of the tooth of the Dugong.
 * 1846, Jeffries Wyman, quoted in The American journal of Science and Arts, B. L. Hamlen; Volume XLV, page #362:
 * In both the pulp cavity sends out its radiations, and in both the cæmentum is more or less prolonged inwards, at regular intervals subdividing the tooth into numerous sections. The calcigerous tubes in both cases are directed from the rays of the pulp cavity towards the investing cæmentum and its involutions.
 * 1888, Doctor Black, quoted in The Monthly Cyclopædia of Practical Medicine; Volume II, №. 1, page #63:
 * There are specimens where the whole root of the tooth that had been cut off was covered with cæmentum. It is very likely that the dried tissue forms a leader to which the first attachment is made, and then we get a deposit of cæmentum and the effect. We never get an attachment without the cæmentum deposit.