destroyable vs frangible

destroyable

adj

  • Able to be destroyed. 

frangible

adj

  • Able to be broken; breakable, fragile. 

noun

  • Something that is breakable or fragile; especially something that is intentionally made so, such as a bullet. 

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