discal vs disklike

discal

adj

  • Pertaining to, or resembling, a disc (disk). 

  • Relating to the central area of an insect's elytron or wing. 

noun

  • The central area of an insect's elytron or wing. 

disklike

adj

  • Resembling or characteristic of a disk. 

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