(grammar) A tense that expresses an unbroken action continuing up to a certain time in the past. In English it is formed by using had been with a present participle.

(grammar) A tense used to express an ongoing action completed after some time in the future. In English it is formed by use of will have been (or shall have been) and a present participle.

(grammar) A tense that expresses an unbroken action continuing at the present time, started in the past. In English it is formed by using have been with a present participle.

(business) An interdisciplinary concept used to create and validate a practiced logistical plan for how an organisation will recover and restore interrupted critical functions within a predetermined time after a disaster or extended disruption.

(of a real-valued function on a topological space) Such that, for each fixed number, the subspace of points whose images are at least that number is closed.

(of a real-valued function on a topological space) Such that, for each fixed number, the subspace of points whose images are at most that number is closed.

plural of continuously variable transmission

(astrobiology, astronomy) the restricted zone around a sun where the ever shifting habitable zone is always present throughout the main sequence lifetime of that star.

plural of continuously habitable zone

Indicates that the text could continue indefinitely; and so on ad infinitum.