(algorithm) /dek/ (deque) A queue which can have items added or removed from either end[?].
The Knuth reference below reports that the name was coined by E. J. Schweppe. [D. E. Knuth, "The Art of Computer Programming. Volume 1: Fundamental Algorithms", second edition, Sections 2.2.1, 2.6, Addison-Wesley, 1973]. Silicon Graphics. [Correct definition? Example use?]