ground-plan vs morphology

ground-plan

noun
  • A diagram showing set layout. 

  • Floorplan. 

  • Framework or pattern. 

  • Hypothetical ancestor of a clade. 

morphology

noun
  • Mathematical morphology. 

  • The study of the internal structure of morphemes (words and their semantic building blocks). 

  • The form and structure of something. 

  • The study of the form and structure of animals and plants. 

  • The study of the structure of rocks and landforms. 

  • A description of the form and structure of something. 

How often have the words ground-plan and morphology occurred in a corpus of books? (source: Google Ngram Viewer )