contraction vs radius

contraction

noun
  • A shortening of a muscle during its use. 

  • The acquisition of something, generally negative. 

  • A period of economic decline or negative growth. 

  • Syncope, the loss of sounds from within a word. 

  • A process whereby one or more sounds of a free morpheme (a word) are lost or reduced, such that it becomes a bound morpheme (a clitic) that attaches phonologically to an adjacent word. 

  • A strong and often painful shortening of the uterine muscles prior to or during childbirth. 

  • A shorthand symbol indicating an omission for the purpose of brevity. 

  • A reversible reduction in size. 

  • A word with omitted letters replaced by an apostrophe, usually resulting from the above process. 

  • The process of contracting a disease. 

  • A distinct stage of wound healing, wherein the wound edges are gradually pulled together. 

radius

noun
  • The long bone in the forearm, on the side of the thumb. 

  • The lighter bone (or fused portion of bone) in the forelimb of an animal. 

  • A line segment between any point of a circle or sphere and its center. 

  • One of the major veins of the insect wing, between the subcosta and the media; the vein running along the costal edge of the discal cell. 

  • Anything resembling a radius, such as the spoke of a wheel, the movable arm of a sextant, or one of the radiating lines of a spider's web. 

  • The length of this line segment. 

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