extra vs integral

extra

adv
  • To an extraordinary degree. 

det
  • Denotes more. 

adj
  • Beyond what is due, usual, expected, or necessary; extraneous; additional; supernumerary. 

  • Over the top; going beyond what is normal or appropriate, often in a dramatic manner. 

noun
  • A run scored without the ball having hit the striker's bat - a wide, bye, leg bye or no ball. 

  • A supernumerary or walk-on in a film or play. 

  • An extra edition of a newspaper, which is printed outside of the normal printing cycle, for example to report an important late-breaking event. 

  • The state or trait of being over the top, of behaving in an overly dramatic manner. 

  • Something additional, such as an item above and beyond the ordinary school curriculum, or added to the usual charge on a bill. 

  • Something of an extra quality or grade. 

integral

adj
  • Of, pertaining to, or being an integer. 

  • Constituting a whole together with other parts or factors; not omittable or removable 

  • Relating to integration. 

noun
  • A definite integral: the result of the application of such an operation onto a function and a suitable subset of the function's domain: either a number or positive or negative infinity. In the former case, the integral is said to be finite or to converge; in the latter, the integral is said to diverge. In notation, the domain of integration is indicated either below the sign, or, if it is an interval, with its endpoints as sub- and super-scripts, and the function being integrated forming part of the integrand (or, generally, differential form) appearing in front of the integral sign. 

  • One of the two fundamental operations of calculus (the other being differentiation), whereby a function's displacement, area, volume, or other qualities arising from the study of infinitesimal change are quantified, usually defined as a limiting process on a sequence of partial sums. Denoted using a long s: ∫, or a variant thereof. 

  • Any of several analytic formalizations of this operation: the Riemann integral, the Lebesgue integral, etc. 

  • An indefinite integral: the result of the application of such an operation onto a function together with an indefinite domain, yielding a function; a function's antiderivative; 

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