morphology vs superstructure

morphology

noun
  • The form and structure of something. 

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

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

  • Mathematical morphology. 

  • The study of the structure of rocks and landforms. 

  • A description of the form and structure of something. 

superstructure

noun
  • Any material structure or edifice built on something else; that which is raised on a foundation or basis. 

  • The sleepers and fastenings, in distinction from the roadbed. 

  • The social sphere of ideology which includes religion, art, politics, law and all traditional values. 

  • Any structure built above the top full deck (FM 55-501). 

  • All that part of a building above the basement. 

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