enlarge upon vs enucleate

enlarge upon

enucleate

verb
  • To remove the nucleus from (a cell). 

  • To extract (an object) intact from an enclosed space 

adj
  • Enucleated, having no nucleus. 

noun
  • A cell which has been enucleated 

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