illuminant vs twinkling

illuminant

noun

  • Something that illuminates. 

adj

  • That illuminates. 

twinkling

noun

  • A shining with fast intermittent light. 

  • A very short period, notionally the time it takes to blink the eyes. 

adj

  • Sparkling intermittently. 

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