Search Result for "x-ray tube":
Wordnet 3.0

NOUN (1)

1. a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays; 



The Collaborative International Dictionary of English v.0.48:

X-ray tube \X"-ray` tube\ (Physics)
   A vacuum tube suitable for producing Roentgen rays.
   [Webster 1913 Suppl.]


WordNet (r) 3.0 (2006):

X-ray tube
    n 1: a vacuum tube containing a metal target onto which a beam
         of electrons is directed at high energy for the generation
         of X rays