A language proposed by Softech to meet the DoD Ironman requirements which led to Ada . ["On the BLUE Language Submitted to the DoD", E.W. Dijkstra, SIGPLAN Notices 13(10):10-15 (Oct 1978)].
BLUE
Meaning of BLUE in English
FOLDOC computer English dictionary. Английский словарь по компьютерам FOLDOC. 2012