(mathematics, UK, Canada) The problem in combinatorial optimization in which, given a number of cities and the costs of travelling from one to the other, it is required to determine the cheapest route that visits each city once and then returns to the initial city.

(Britain) A member of a community of people, many of whom hold New Age beliefs, who travel among fairs and music festivals.

(electronics) An electron tube in which high-energy microwaves are produced by transferring energy from electrons

(computing theory) A generalization of the shortest path problem to graphs that are only partially observable (i.e. the graph is revealed while it is being explored).

(electronics) A type of vacuum tube which amplifies electromagnetic signals, where the electron gun fires down the tube with an unmodulated electron beam, that passes through an interaction array, where the EM-signal is fed, which interacts with the electron beam, bunching the electrons, and transferring power to the signal.

plural of traveling-wave tube Alternative form of travelling-wave tubes

plural of travelling-wave tube

plural of New Age traveller

plural of travelling wave tube

Bad news circulates quickly because people often spread it everywhere.