equation vs segment

equation

noun
  • The act or process of equating two or more things, or the state of those things being equal (that is, identical). 

  • An assertion that two expressions are equal, expressed by writing the two expressions separated by an equal sign; from which one is to determine a particular quantity. 

  • A small correction to observed values to remove the effects of systematic errors in an observation. 

segment

noun
  • One of the parts into which any body naturally separates or is divided; a part divided or cut off; a section; a portion. 

  • A straight path between two points that is the shortest distance between them. 

  • One of several parts of an organism, with similar structure, arranged in a chain; such as a vertebra, or a third of an insect's thorax. 

  • The part of a circle between its circumference and a chord (usually other than the diameter). 

  • A part of a broadcast program, devoted to a topic. 

  • An Ethernet bus. 

  • Any of the pieces that constitute an order tree. 

  • A discrete unit of speech: a consonant or a vowel. 

  • The part of a sphere cut off by a plane. 

  • A length of some object. 

  • A bearing representing only one part of a rounded object. 

  • A portion of an organ whose cells are derived from a single cell within the primordium from which the organ developed. 

  • A portion of an itinerary: it may be a flight or train between two cities, or a car or hotel booked in a particular city. 

  • A region of memory or a fragment of an executable file designated to contain a particular part of a program. 

verb
  • To divide into segments or sections. 

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