Find the word definition

Crossword clues for bombe


n. 1 A dessert made from ice cream frozen in a mold. 2 (context computing English) An electromechanical device used in early cryptanalysis.


The bombe was an electromechanical device used by British cryptologists to help decipher German Enigma-machine-encrypted secret messages during World War II. The US Navy and US Army later produced their own machines to the same functional specification, but engineered differently from each other and from the British Bombe.

The initial design of the bombe was produced in 1939 at the UK Government Code and Cypher School (GC&CS) at Bletchley Park by Alan Turing, with an important refinement devised in 1940 by Gordon Welchman. The engineering design and construction was the work of Harold Keen of the British Tabulating Machine Company. It was a substantial development from a device that had been designed in 1938 in Poland at the Biuro Szyfrów (Cipher Bureau) by cryptologist Marian Rejewski, and known as the " cryptologic bomb" .

The bombe was designed to discover some of the daily settings of the Enigma machines on the various German military networks: specifically, the set of rotors in use and their positions in the machine; the rotor core start positions for the message—the message key—and one of the wirings of the plugboard.

Usage examples of "bombe".

The Luftwaffe carried out its part in the German invasion of Poland with fierce efficiency and many Polish communities were bombed in the name of tactical bombing, the yardstick being that, if a town stood in the way of the Wehrmacht, it was bombed.

But it must have been obvious to the senior officers concerned that the German civilians were to be bombed, their homes and belongings destroyed, and, if they were not evacuated or given adequate air-raid shelters, they would be killed, burnt and mutilated in large numbers.

French coast in clear daylight, penetrated thirty miles inland, and bombed a railway marshalling yard near Rouen.

Not one of the groups that bombed Hamburg in July 1943 had existed before the United States entered the war in December 1941.

Two-thirds of the July 1943 groups had not even existed on paper a year before they bombed Hamburg.

It was quite normal that, if a city had suffered a particularly heavy raid, several railway batteries would be sent there immediately, partly to strengthen the defences against any follow-up raids, but mainly to bolster the morale of the bombed civilians.

The area to be bombed in this first night of the battle had already been chosen.

Some of the less stout-hearted bombed the first markers they came to or even just a fraction short of the first markers.

The other two aircraft that bombed at this time did not release markers.

Pathfinders marked five separate areas of the city at the opening of the raid and that the early waves of the Main Force bombed all these.

Aiming Point, was the most heavily bombed area in the first phase of the raid.

Otto Mahncke describes his journey, with a neighbour, through the bombed streets near the city centre.

Every military unit in and around Hamburg was mobilized and at least 35,000 men were soon hard at work in the bombed city.

It simply meant that every man and woman working in the bombed city and all matters affecting civilian existence in it were now brought more closely under party control.

Hapless civilians had been trapped in bombed and burning buildings, had stood in streets watching the possessions of a lifetime burn away, had fled their cities in fear and misery in many places before.