CONTRAST MATERIAL as NOUN

1. Meaning
   • a substance that is opaque to x-rays
   • when administered it allows a radiologist to examine the organ or tissue it fills
   Synonym(s)
   • contrast medium (what does contrast medium mean?)
   Hypernyms(s) contrast material is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • medium (what does medium mean?)