aÂ·pexÂ·iÂ·fiÂ·caÂ·tion. Induced tooth root development or closure of the root apex by hard tissue deposition. apexification. a process of promoting apical closure of the root in an endodontically treated tooth by placement of calcium hydroxide paste or other tissue-tolerant material in the root canal after an apicoectomy.
Supernumerary is an adjective which means exceeding the usual number. When used as a noun, supernumerary means a temporary employee, additional society member, or extra manpower, usually in a function which has a temporary contract. In aeronautical context, a flight deck may contain a supernumerary seat. 2  This is a place for someone who doesn't have anything to do with the take off, flying, or landing of the aircraft. 3  Just a place for an extra body to observe.
A  superdelegate  or an  unpledged delegate  is a delegate to the Democratic National Convention or Republican National Convention that is seated automatically, based on their status as current (Republican and Democratic) or former (Democratic only) party leader or elected official.n 1992 was the addition of a category of unpledged add-ons, a fixed number of spots allocated to the states, intended for other party leaders and elected officials not already covered by the previous categories. Finally, beginning in 1996, all Democratic members of Congress were given superdelegate status.