X-RAY TUBE as NOUN

1. Meaning
   • a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays
   Hypernyms(s) X-ray tube is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • tube (what does tube mean?)
   • vacuum tube (what does vacuum tube mean?)
   • thermionic vacuum tube (what does thermionic vacuum tube mean?)
   • thermionic tube (what does thermionic tube mean?)
   • electron tube (what does electron tube mean?)
   • thermionic valve (what does thermionic valve mean?)