limb vs thighbone

limb

noun
  • A major appendage of human or animal, used for locomotion (such as an arm, leg or wing). 

  • The apparent visual edge of a celestial body. 

  • An elementary piece of the mechanism of a lock. 

  • A thing or person regarded as a part or member of, or attachment to, something else. 

  • The border or upper spreading part of a monopetalous corolla, or of a petal or sepal; blade. 

  • The part of the bow, from the handle to the tip. 

  • A branch of a tree. 

  • The graduated edge of a circle or arc. 

verb
  • To remove the limbs from (an animal or tree). 

  • To supply with limbs. 

thighbone

noun
  • The bone that extends from the pelvis to the knee in humans; the femur. 

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