igneous vs incandescent

igneous

adj
  • Resulting from, or produced by, great heat. With rocks, it could also mean formed from lava or magma. 

  • Pertaining to or having the nature of fire; containing fire; resembling fire. 

incandescent

adj
  • Emitting light as a result of being heated. 

  • Showing intense emotion, as of a performance, etc. 

  • Shining very brightly. 

noun
  • An incandescent lamp or bulb 

How often have the words igneous and incandescent occurred in a corpus of books? (source: Google Ngram Viewer )