operant vs strapping

operant

noun
  • An operative person or thing. 

  • Any of a class of behaviors that produce consequences by operating (i.e., acting) upon the environment. 

adj
  • That operates to produce an effect. 

strapping

noun
  • The act of fastening with a strap. 

  • A beating with a strap. 

  • A length of narrow material to be used for straps, or straps collectively. 

  • Adhesive plaster for strapping injuries. 

adj
  • Having a sturdy muscular physique; robust. 

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